358 results on '"virosis"'
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2. EPIDEMIOLOGICAL, CLINICAL AND VIROLOGICAL CHARACTERISTICS OF PATIENTS WITH MONKEYPOX. A RETROSPECTIVE STUDY.
- Author
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Fernández Pardal, Patricia A., Marchetta, Lucila, Funes Ghigi, María Gracia, Bouzas, María Belén, Mammana, Lilia, Perelló, María Javiera, Francos, José Luis, Braga, Ignacio, Masini, Daniela, Saúl, Pablo A., and Leiro, Viviana
- Abstract
Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
3. Akutní infekce horních cest dýchacích - diagnostika a léčba.
- Author
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Edelmannová, Karolina
- Subjects
RESPIRATORY infections ,JUVENILE diseases ,COMMON cold ,MIDDLE ear ,COMMUNICABLE diseases - Abstract
Copyright of Farmacie Pro Praxi is the property of SOLEN sro and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
4. Correlación entre enfermedades y rendimiento en nuevos genotipos ecuatorianos de fréjol
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Ismael Modesto Olmedo-Zamora and Felipe Rafael Garcés-Fiallos
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phaseolus vulgaris ,rhizoctonia solani ,uromyces apendiculatus ,virosis ,patógenos radiculares ,producción de granos. ,Agriculture (General) ,S1-972 ,Animal culture ,SF1-1100 - Abstract
El objetivo fue evaluar las enfermedades foliares y radiculares, así como la producción de granos, y correlacionar sus variables en 18 líneas promisorias de fréjol con hábito de crecimiento determinado tipo Ia, tres de crecimiento indeterminado tipo IIb y la variedad INIAP-473 utilizada como testigo. Esto en un único experimento de campo durante la época seca del año 2011, en Quevedo, Ecuador, bajo un diseño experimental de bloques completo al azar y conformado por tres repeticiones. Se evaluó tanto la severidad (%) de enfermedades foliares durante las etapas fenológicas R7 y R8, así como la incidencia (%) de enfermedades radiculares. Se cuantificaron tanto el número de granos por planta y granos por vaina, como la longitud de vaina, el peso de mil granos y el rendimiento de grano. Para la comparación entre las medias de los tratamientos se empleó la prueba de Scott-Knott (p
- Published
- 2022
5. Akutní infekce horních cest dýchacích - diagnostika a léčba.
- Author
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Edelmannová, Karolina
- Subjects
RESPIRATORY infections ,JUVENILE diseases ,COMMON cold ,MIDDLE ear ,COMMUNICABLE diseases - Abstract
Copyright of Medicina Pro Praxi is the property of SOLEN sro and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
6. Caracterización de aislados virales en Solanum quitoense y Solanum lasiocarpum
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Castro Quezada, Patricio Salvador, Amón Togra, Henry Luis, Castro Quezada, Patricio Salvador, and Amón Togra, Henry Luis
- Abstract
The cultivation of naranjilla represents one of the significant economic sectors at the level of the eastern communities of Ecuador, being a crop widely accepted both in the national and foreign markets. Among the main limitations that affect production and make it unprofitable are pests and diseases that limit its performance, using excessive use of pesticides to counteract the problems presented in situ. Taking into account the incidence of pests, these can be the main spreaders of more complex diseases such as viruses. In several locations in the Limón-Indanza canton, the incidence of possible symptoms related to viruses has been witnessed, such as: chlorosis, wrinkling of leaves, internerval mosaics, underdevelopment in plants, fruit abortion, highlighting the presence of possible viruses among different locations. The objective of this study was to characterize the viral isolates from 4 naranjilla producing localities in two species of the Lasiocarpa group, (S. quitoense and S. lasiocarpum), mechanical inoculations were carried out in the two species, evaluating the incidence and severity of the symptoms. Observed in the experimental units, a completely randomized design was carried out, for the severity variable it was measured at 15, 35 and 56 dai (days after inoculation), there were differences between the control and the viral isolates for each of the species. It was also identified that S. quitoense was more susceptible to damage than S. lasiocarpum. In the molecular part, no amplifications were observed with the primers used for PCR. In addition, the symptoms observed for each viral isolate were characterized, this work being a contribution of continuity and information for the southern region of the country.
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- 2024
7. Comportamiento Epidemiológico del Virus del Dengue en la Región Huetar Atlántica Durante el Año 2023
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Badilla Ramírez, Yanán and Badilla Ramírez, Yanán
- Abstract
In recent years, dengue transmission and the frequency of epidemics have increased considerably in most tropical countries of the Americas. Currently, in the Americas, Aedes aegypti is the mosquito vector for dengue and is widely distributed throughout the territory. The infection is classified as a re-emerging disease in Costa Rica. PAHO has stated that the number of dengue cases in the Americas has increased in the last four decades, going from 1.5 million accumulated cases in the 1980s to 16.2 million cases in the 2010s. 2019. In addition, nearly 500 million people in the Americas are currently at risk of contracting dengue. This study presents 5,188 cases of confirmed diagnosis of classic dengue. This situation is worrying because the current trend line of new dengue cases tends towards discharge and evidence that dengue represents a public health problem in Costa Rica. The objective of this publication is to determine the epidemiological behavior of classic dengue and the incidence rate in the Huetar-Atlántica Region during the year 2023., En los últimos años la transmisión del dengue y la frecuencia de las epidemias han aumentado considerablemente en la mayoría de los países tropicales de las Américas. Actualmente, en las Américas, el Aedes aegypti es el mosquito vector para el dengue y está ampliamente distribuido en todo el territorio. La infección está clasificada como una enfermedad de característica reemergente en Costa Rica. La OPS ha afirmado que el número de casos de dengue en las Américas se ha incrementado en las últimas cuatro décadas, en tanto pasó de 1.5 millones de casos acumulados en la década de los ochenta, a 16.2 millones de casos en la década del 2010 al 2019. Además, cerca de 500 millones de personas en las Américas están actualmente en riesgo de contraer dengue En este estudio se presentan 5188 casos de diagnóstico confirmado de dengue clásico. Dicha situación es preocupante debido a que la línea de tendencia actual de nuevos casos de dengue tiende hacia el alta y evidencia que el dengue representa un problema de salud pública en Costa Rica. El objetivo de esta publicación es determinar el comportamiento epidemiológico del dengue clásico y la tasa de incidencia en la Región Huetar Atlántica durante el año 2023
- Published
- 2024
8. Viruela símica: la otra pandemia, el otro reto.
- Author
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Alejandro Cabrera-Gaytán, David and Angélica Alfaro-Martínez, Liliana
- Abstract
Since the emergence of monkeypox in Europe, this disease has gradually spread throughout the rest of the world. In Mexico, epidemiological notices have been issued with the main guidelines to follow in terms of epidemiological surveillance and official figures have been published regularly on a microsite weeks after the first cases. These sources of information were reviewed and analyzed, based on which observations are issued, in addition to other relevant publications on the subject, with the interest of reinforcing the surveillance of this disease in the country. [ABSTRACT FROM AUTHOR]
- Published
- 2023
9. COVID-19: immune response and therapeutic perspective
- Author
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Iván Lozada-Requena and César Núñez Ponce
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síndrome respiratorio agudo grave ,neumonía viral ,virosis ,infecciones por coronavirus ,pandemias ,anticuerpos ,citocinas ,linfocitos ,vacunas ,covid-19 ,Medicine ,Medicine (General) ,R5-920 - Abstract
Disease caused by the new coronavirus (COVID-19) is characterized by fever, cough, and affection of the lower respiratory tract. It is associated with age, comorbidities and a weakened immune system. Typically, lymphopenias have been evidenced in severe cases and an excessive production of inflammatory cytokines (cytokine storm), which would explain the role of the hyperinflammatory response in the pathogenesis of COVID-19. Secondary inflammatory responses from virus reinfections may induce antibody-dependent enhancement (ADE), a viremic phenomenon that may be an alternative mechanism of cellular infection and should be considered when designing vaccines or immunotherapies involving the stimulation of neutralizing antibodies or the use of monoclonal antibodies. Currently, no vaccines or treatments demonstrate safety and efficacy in patients with COVID-19. However, the results from phase III clinical trials which involve the application of an mRNA (messenger ribonucleic acid) nucleic acid vaccine and an antiviral drug (remdisivir), are yet to be concluded. For the time being, the best measure to prevent the spread of COVID-19 is by implementing social isolation, this measure has been adopted by several countries as recommended by the World Health Organization (WHO).
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- 2020
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10. Description of patients with severe covid-19 treated in a National Referral Hospital in Peru
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Giancarlo Acosta, Gerson Escobar, Gissela Bernaola, Johan Alfaro, Waldo Taype, Carlos Marcos, and Jose Amado
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síndrome respiratorio agudo grave ,neumonía viral ,servicios médicos de urgencias ,virosis ,infecciones por coronavirus ,pandemias ,Medicine ,Medicine (General) ,R5-920 - Abstract
In order to describe manifestations from patients with coronavirus disease 2019 (COVID-19), sociodemographic variables such as, previous medical history, clinical and radiological manifestations, treatments and evolution of patients were evaluated. This took place from March 6th to 25th, 2020, in the “Edgardo Rebagliati Martins” National Hospital in Lima. Seventeen patients were registered: 76% were male, with an average age of 53.5 years (range 25-94); 23.5% had returned from abroad; 41.2% were referred from other health facilities; 41.2% were admitted to mechanical ventilation; 29.4% (5 patients) died. The risk factors detected were: advanced age, arterial hypertension and obesity. The main symptoms detected were: cough, fever and dyspnea. Frequent laboratory findings were: elevated C-reactive protein and lymphopenia. The predominant radiological presentation was bilateral interstitial lung infiltrate. A first experience in the management of patients diagnosed with severe COVID-19 in Peru is reported.
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- 2020
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11. Rendimiento de ocho cultivares de tomate (Solanum lycopersicum L.) en la provincia Granma y su comportamiento frente a Begomovirus.
- Author
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Lescay-Batista, Elio and Molinet-Salas, Dariel
- Abstract
Se desarrollaron dos experimentos en las campañas 2016-2017 y 2017-2019 sobre un suelo Fluvisol en la Estación Experimental Agrícola, perteneciente al Instituto de Investigaciones Agropecuarias "Jorge Dimitrov", para determinar el rendimiento en ocho cultivares de tomate en la provincia Granma y su comportamiento frente a begomovirus. Estos se plantaron en surcos individuales de 10 m de largo, en un diseño de bloques al azar con tres réplicas. La distancia de plantación fue de 1,40x0, 25 m por tratamiento. Se aplicó análisis de varianza factorial en la incidencia de la mosca blanca y severidad del virus y de clasificación doble en el rendimiento. La comparación múltiple de medias se realizó por la prueba de Tukey para P=0,05. Los resultados mostraron que tanto la incidencia de Mosca blanca, como la severidad del virus, expresaron valores bajos, entre 3,0 y 10,2 insectos por planta en el primero y entre 1,02 y 1,31 % de plantas afectadas en el segundo. Los cultivares que mostraron mayores rendimientos fueron HC-2580, HC-7880 y Rilia con valores de 31,4, 31,0 y 29,6 t ha-1, respectivamente. [ABSTRACT FROM AUTHOR]
- Published
- 2022
12. Correlation Between SARS-Cov-2 Vaccination, COVID-19 Incidence and Mortality: Tracking the Effect of Vaccination on Population Protection in Real Time
- Author
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Kiyoshi F. Fukutani, Mauricio L. Barreto, Bruno B. Andrade, and Artur T. L. Queiroz
- Subjects
COVID19 ,vaccine ,worldwide ,epidemiology ,virosis ,Genetics ,QH426-470 - Abstract
Coronavirus disease 19 (COVID-19) has struck the world since the ending of 2019. Tools for pandemic control were scarce, limited only to social distance and face mask usage. Today, upto 12 vaccines were approved and the rapid development raises questions about the vaccine efficiency. We accessed the public database provided by each country and the number of death, active cases, and tests in order to evaluate how the vaccine is influencing the COVID-19 pandemic. We observed distinct profiles across the countries and it was related to the vaccination start date and we are proposing a new way to manage the vaccination.
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- 2021
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13. Correlation Between SARS-Cov-2 Vaccination, COVID-19 Incidence and Mortality: Tracking the Effect of Vaccination on Population Protection in Real Time.
- Author
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Fukutani, Kiyoshi F., Barreto, Mauricio L., Andrade, Bruno B., and Queiroz, Artur T. L.
- Subjects
COVID-19 ,SARS-CoV-2 ,COVID-19 pandemic ,VACCINATION ,PANDEMICS ,MEDICAL masks - Abstract
Coronavirus disease 19 (COVID-19) has struck the world since the ending of 2019. Tools for pandemic control were scarce, limited only to social distance and face mask usage. Today, upto 12 vaccines were approved and the rapid development raises questions about the vaccine efficiency. We accessed the public database provided by each country and the number of death, active cases, and tests in order to evaluate how the vaccine is influencing the COVID-19 pandemic. We observed distinct profiles across the countries and it was related to the vaccination start date and we are proposing a new way to manage the vaccination. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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14. Resistance to ganciclovir in cytomegalovirus infection after heart transplant: case report
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Christian Rojas-Contreras, Gabriel De la Cruz-Ku, Stalin Vilcarromero, Ruben Villacaqui Ayllon, and Bryan Valcarcel-Valdivia
- Subjects
trasplante cardiaco ,pediatría ,virosis ,resistencia antiviral ,foscarnet, perú ,Medicine ,Medicine (General) ,R5-920 - Abstract
Cytomegalovirus infection after a heart transplant is a recurrent medical condition. Its frequency increases when the donors are serum-positive, and the recipients are serum-negative to this virus. In the pediatric population, the infection only develops in a small percentage and the patients rarely present resistance to conventional treatment with ganciclovir and valganciclovir. We presented the first report of a pediatric case of the cytomegalovirus infection resistant to ganciclovir and valganciclovir after a heart transplant in a Peruvian public hospital with an unusual presentation. The resistance to these drugs was evident after 277 days of evolution of the disease considering the non-remission of the symptomatology and the persistence of an elevated viral load. The administration of foscarnet led to a clinical and laboratory improvement until remission of the disease.
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- 2018
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15. Graft response of Capsicum chinense-Capsicum annuum var. glabriusculum to Begomovirus in field.
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Navarrete-Mapen, Reyna Z., Cristóbal-Alejo, Jairo, Uc-Várguez, Alberto, Reyes-Ramírez, Arturo, Tun-Suárez, José M., and Juan Alvarado-López, Carlos
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CAPSICUM annuum , *INSECT-plant relationships , *HOT peppers , *DISEASE incidence , *ALEYRODIDAE - Abstract
One of the phytosanitary problems in the cultivation of pepper is the whitefly, begomovirus transmitter. Given the need for alternatives, the objective was to evaluate graft tolerance of Capsicum chinense-Capsicum annuum var. glabriusculum to begomovirus under field conditions. Two creole materials were used for rootstock (amashito and muela) and habanero pepper as graft (criollo and jaguar). The "terminal plectrum" graft was used and six treatments were generated. The whitefly populations, the incidence and severity of the disease were recorded every 10 days, with the latter AUDPC were calculated and apparent infection rate Yfinal. In the production stage, yield, length and diameter of fruits it was determined. At 130 days after transplantation, the population under whitefly, it was quantified in the grafted treatments (muela + habanero jaguar, amashito + habanero jaguar, muela + habanero criollo y amashito + habanero criollo) that ranged from 5.5 to 14.5 insects per plant. The increased incidence and severity of virus was average in habanero jaguar with 100 and 62%. The lowest AUDPC, apparent infection rate and Yfinal were estimated in muela + habanero criollo with 746.6 (% per day), 0.0050 (% per day) and 23.4%, in their order; associated with the genetic strength of the rootstock. The grafts amashito + habanero jaguar, amashito + habanero criollo y muela + habanero criollo showed better agronomic performance and productivity of the crop. [ABSTRACT FROM AUTHOR]
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- 2020
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16. Insects and mites associated with pepper. How much diversity can be observed in a crop?
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Ketty Meza, Dorys T. Chirinos, and José Velasquez
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pepper ,Coccinellidae ,Trips ,pimiento ,Thrips ,virosis - Abstract
RESUMEN: El pimiento (Capsicum annuum L.) es una hortaliza de mayor consumo mundial, puesto que, sus frutos son ricos en fibra, vitaminas A y C, antioxidantes y pueden comercializarse frescos o procesados. Actualmente existe un descenso de la producción, debido a la aparición de problemas fitosanitarios que ocurren a lo largo del ciclo fenológico. La base fundamental de un programa de manejo integrado de plagas lo constituye el conocimiento de los artrópodos asociados a un cultivo. El objetivo de este trabajo fue el estudio de los artrópodos plagas y enemigos naturales presentes en una parcela de pimiento de 1000 m2. Durante agosto 2021 - enero de 2022, se realizaron muestreos semanales de hojas para la identificación de los taxones presentes. Un total de 1485 especímenes de artrópodos fueron observados durante el estudio, representado por el 61,5% de enemigos naturales y el 38,5% de fitófagos. La identificación de los artrópodos plagas representa la primera fase para consecutivamente evaluar la magnitud de sus daños en combinación con la acción de los enemigos naturales para definir su importancia como agentes biológicos de regulación. ABSTRACT: The pepper (Capsicum annuum L.) is a vegetable with the highest consumption worldwide, since its fruits are rich in fiber, vitamins A and C, antioxidants and can be marketed fresh or processed. Currently there is a decrease in production, due to the appearance of phytosanitary problems that occur throughout the phenological cycle. The fundamental basis of an integrated pest management program is the knowledge of the arthropods associated with a crop. The objective of this work was the study of arthropod pests and natural enemies present in a pepper plot of 1000 m2. During August 2021 - January 2022, weekly leaf sampling was carried out to identify the taxa present. A total of 1485 arthropod specimens were observed during the study, represented by 61.5% natural enemies and 38% phytophagous. The identification of pest arthropods represents the first phase to consecutively evaluate the magnitude of their damage in combination with the action of natural enemies to define their importance as biological regulation agents.
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- 2022
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17. El virus del Zika, un desafío para la epidemiología
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José Daniel Pérez Díaz, Vidal Ramón Planas de la Rosa, Dailén de la Caridad Pérez Díaz, and Héctor Morales Martínez
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virus zika ,virosis ,epidemiología. ,Medicine ,Medicine (General) ,R5-920 - Abstract
Se realizó una revisión bibliográfica exhaustiva sobre la enfermedad causada por el virus del Zika, basada en elementos teóricos de dicha patología dado los altos niveles de infestación que afecta a la población a nivel mundial. Por ser esta enfermedad infecciosa reemergente una de las principales problemáticas de la medicina en especial para la Epidemiología, fue objetivo de esta investigación caracterizar y describir sus principales características diagnósticas y terapéuticas. Para seleccionar información con calidad científica se tuvo en cuenta las bases de datos MEDLINE, OMS y PubMed, tratados de la materia, artículos originales y revisión de revistas, además de sitios de INTERNET de relevante importancia, en total se consultaron 32 referencias. Con los resultados obtenidos de esta revisión se concluyó que con un diagnóstico adecuado y una prevención esencial y mantenida las posibilidades de contagio disminuyen, así como los daños que ocasiona sobre todo a las mujeres durante la gestación.
- Published
- 2017
18. DEVELOPMENT OF NEW FORMS OF TREE-SHAPED TOMATO AND THEIR USE IN BREEDING PROGRAM
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V. M. Rotari, M. D. Nikulaesh, A. E. Tsepordei, and R. K. Rechets
- Subjects
selection ,hybridization ,lines ,tree-shaped tomato ,virosis ,phytoplasmas ,alternaria ,Agriculture - Abstract
Tree-shaped plants of tomato have many useful traits, which gain them advantages over common tomato forms. In world plant collection there are over 200 accessions, cultivars and hybrids of tree-shaped tomato. The aim of the study was to develop new initial tomato accessions for breeding program for tree-shaped cultivars and hybrids that are distinguished by a shape, fruit weight and color, improved by interspecific hybridization chemical composition and resistance to the major diseases. The tree-shaped breeding lines: ‘196/12’, ‘374/08’, ‘909/14’, ‘911/14’ and other were observed with the use of interspecific hybridization and selection in the population F2-F4. The selected lines passed the trial in artificially infected condition with Alternaria, viral diseases (MToV, TSWV) and phytoplasmas. Among breeding lines assessed the ‘911/14’, ‘374/08’ and‘40/11’ were less affected by complex of pathogens. The lines ‘196/12’ and ‘909/14’ passed an assessment in the nursery for variety trial in naturally and provocatively infected conditions with major pathogens. Both breeding lines had an advantage over standard accession ‘Laguna’ and ‘Maraphon’ for total yield capacity and standard fruit harvest; it was more by 9.6% and 52.2% and 9.5% and 53.4% respectively. Fruits of lines 196/12 and 909/14 had good taste quality with high content of dry matter (5.8% and 6.8%), sugars (3.3% and 3.1%), vitamin C (22.2 and 24.8 mg/100 grams). The selected tree-shaped accessions have been used to develop heterotic hybrids and to be sources of economically valuable traits.
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- 2017
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19. Transition from the old to the new viral normality: Where are we?
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Universitat Politècnica de Catalunya. Doctorat en Física Computacional i Aplicada, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. BIOCOM-SC - Biologia Computacional i Sistemes Complexos, Perramon Malavez, Aida, López de Rioja, Víctor, López Codina, Daniel, Prats Soler, Clara, Universitat Politècnica de Catalunya. Doctorat en Física Computacional i Aplicada, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. BIOCOM-SC - Biologia Computacional i Sistemes Complexos, Perramon Malavez, Aida, López de Rioja, Víctor, López Codina, Daniel, and Prats Soler, Clara
- Abstract
Background: The seasonality of respiratory diseases caused by viruses has been altered by the emergence of SARS-CoV-2. After a period of almost no bronchiolitis and influenza diagnoses, these seasonal infectious diseases are progressively recovering their pre-pandemic dynamics. We aim to describe how this process is taking place in Catalonia. Material and method: We used primary-care syndromic diagnostic data of bronchiolitis, influenza, and COVID-19 in Catalonia (Spain), which are publicly available through the new Information System for the Surveillance of Infections in Catalonia (SIVIC). We carried out a descriptive study of their dynamics from 2014 to 2023, focusing on the changes induced by the pandemic. Results: The results show that the old viral normality was significantly disrupted by SARS-CoV-2 and that we are experiencing a transition to a new viral normality where this novel infectious agent could play a role, but its precise dynamics remains unclear. Conclusions: We are slowly moving towards regular influenza and bronchiolitis seasonality. The role of SARS- CoV-2 in the viral landscape in Catalonia remains uncertain, but its effects on other pathogens are relevant and warrant further investigation., Peer Reviewed, Objectius de Desenvolupament Sostenible::3 - Salut i Benestar, Postprint (published version)
- Published
- 2023
20. Detección de virus en camote (Ipomoea batatas L.) mediante qPCR
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Ingrid Varela-Benavides and Carla Trejos-Araya
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virosis ,PCR múltiple ,batata ,Costa Rica ,hortaliza de raíz ,Agriculture - Abstract
Introducción. El camote (Ipomoea batatas) es un cultivo muy susceptible a las enfermedades virales, las cuales se han asociado con una disminución del rendimiento del cultivo mayor al 50 %. En las plantaciones de camote costarricenses se ha reportado la presencia del virus del moteado plumoso (SPFMV), el virus del enanismo clorótico (SPCSV) y el virus del enrollamiento de la hoja (SPLCV); para el desarrollo de programas adecuados de control de estos virus, es necesaria la detección e identificación temprana mediante el uso de técnicas sensibles y eficientes. Objetivo. El objetivo de esta investigación fue estimar la incidencia del SPFMV, el SPCSV y el SPLCV en plantaciones de camote mediante qPCR. Materiales y métodos. En el 2018 se recolectaron muestras de tejido foliar de ochenta plantas con síntomas de infección viral en veinticinco plantaciones de camote distribuidas en cuatro provincias de Costa Rica. La detección de los tres virus se llevó a cabo mediante qPCR con el empleo de imprimadores y sondas de hidrólisis específicos. Resultados. En el 92 % de las plantaciones analizadas se encontró la presencia de virosis. La enfermedad viral del camote (SPVD), definida como la infección combinada del SPFMV y el SPCSV, fue la que se detectó con más frecuencia. Las plantaciones ubicadas en las localidades de Sabanilla, El Cacao y La Guácima de Alajuela fueron las únicas en presentar los tres virus estudiados. El virus SPLCV solamente fue detectado en las provincias de Limón y Alajuela. Conclusión. Es posible realizar una detección temprana de tres de los virus más frecuentes en camote con el empleo de qPCR, lo que contribuiría con los programas de producción de semilla certificada.
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- 2020
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21. Transition from the old to the new viral normality: Where are we?
- Author
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Perramon Malavez, Aida, López de Rioja, Víctor, López Codina, Daniel, Prats Soler, Clara, Universitat Politècnica de Catalunya. Doctorat en Física Computacional i Aplicada, Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. BIOCOM-SC - Biologia Computacional i Sistemes Complexos
- Subjects
COVID-19 (Disease) ,Virosis ,Ciències de la salut::Medicina::Medicina comunitària i salut pública [Àrees temàtiques de la UPC] ,Respiratory ,Population surveillance ,Respiratory system--Diseases ,Tract Infections ,Infeccions respiratòries ,Virus diseases - Abstract
Background: The seasonality of respiratory diseases caused by viruses has been altered by the emergence of SARS-CoV-2. After a period of almost no bronchiolitis and influenza diagnoses, these seasonal infectious diseases are progressively recovering their pre-pandemic dynamics. We aim to describe how this process is taking place in Catalonia. Material and method: We used primary-care syndromic diagnostic data of bronchiolitis, influenza, and COVID-19 in Catalonia (Spain), which are publicly available through the new Information System for the Surveillance of Infections in Catalonia (SIVIC). We carried out a descriptive study of their dynamics from 2014 to 2023, focusing on the changes induced by the pandemic. Results: The results show that the old viral normality was significantly disrupted by SARS-CoV-2 and that we are experiencing a transition to a new viral normality where this novel infectious agent could play a role, but its precise dynamics remains unclear. Conclusions: We are slowly moving towards regular influenza and bronchiolitis seasonality. The role of SARS- CoV-2 in the viral landscape in Catalonia remains uncertain, but its effects on other pathogens are relevant and warrant further investigation. Peer Reviewed Objectius de Desenvolupament Sostenible::3 - Salut i Benestar
- Published
- 2023
22. COVID-19 pandemic in Panama: lessons of the unique risks and research opportunities for Latin America.
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Loaiza, Jose R., Kosagisharaf, Rao, Eskildsen, Gilberto A., Ortega-Barria, Eduardo, Miller, Matthew J., and Gittens, Rolando A.
- Subjects
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COVID-19 pandemic , *SCIENTIFIC knowledge , *COVID-19 , *MIDDLE-income countries - Abstract
The Republic of Panama has the second most unequally distributed wealth in Central America, has recently entered the list of countries affected by the COVID-19 pandemic, and has one of the largest testing rate per inhabitant in the region and consequently the highest incidence rate of COVID-19, making it an ideal location to discuss potential scenarios for assessing epidemic preparedness, and to outline research opportunities in the Region of the Americas. We address two timely important questions: What are the unique risks of COVID-19 in Panama that could help other countries in the Region be better prepared? And what kind of scientific knowledge can Panama contribute to the regional and global study of COVID-19? This paper provides suggestions about how the research community could support local health authorities plan for different scenarios and decrease public anxiety. It also presents basic scientific opportunities about emerging pandemic pathogens towards promoting global health from the perspective of a middle income country. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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23. Clinical trials on drug repositioning for COVID-19 treatment.
- Author
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Viveiros Rosa, Sandro G. and Santos, Wilson C.
- Subjects
- *
COVID-19 , *CLINICAL drug trials , *SARS-CoV-2 , *COVID-19 pandemic , *DEATH rate - Abstract
The World Health Organization (WHO) was informed on December 2019 about a coronavirus pneumonia outbreak in Wuhan, Hubei province (China). Subsequently, on March 12, 2020, 125,048 cases and 4,614 deaths were reported. Coronavirus is an enveloped RNA virus, from the genus Betacoronavirus, that is distributed in birds, humans, and other mammals. WHO has named the novel coronavirus disease as COVID-19. More than 80 clinical trials have been launched to test coronavirus treatment, including some drug repurposing or repositioning for COVID-19. Hence, we performed a search in March 2020 of the clinicaltrials.gov database. The eligibility criteria for the retrieved studies were: contain a clinicaltrials.gov base identifier number; describe the number of participants and the period for the study; describe the participants' clinical conditions; and utilize interventions with medicines already studied or approved for any other disease in patients infected with the novel coronavirus SARS-CoV-2 (2019-nCoV). It is essential to emphasize that this article only captured trials listed in the clinicaltrials.gov database. We identified 24 clinical trials, involving more than 20 medicines, such as human immunoglobulin, interferons, chloroquine, hydroxychloroquine, arbidol, remdesivir, favipiravir, lopinavir, ritonavir, oseltamivir, methylprednisolone, bevacizumab, and traditional Chinese medicines (TCM). Although drug repurposing has some limitations, repositioning clinical trials may represent an attractive strategy because they facilitate the discovery of new classes of medicines; they have lower costs and take less time to reach the market; and there are existing pharmaceutical supply chains for formulation and distribution. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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- View/download PDF
24. To breastfeed or not to breastfeed? Lack of evidence on the presence of SARS-CoV-2 in breastmilk of pregnant women with COVID-19.
- Author
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Martins-Filho, Paulo Ricardo, Santana Santos, Victor, and Santos Jr., Hudson P.
- Subjects
- *
COVID-19 , *SARS-CoV-2 , *PREGNANT women , *THIRD trimester of pregnancy , *SYMPTOMS - Abstract
A rapid systematic review was carried out to evaluate the current evidence related to the presence of SARS-CoV-2 in breast milk from pregnant women with COVID-19. Eight studies analyzing the presence of SARS-CoV-2 RNA in the breast milk of 24 pregnant women with COVID-19 during the third trimester of pregnancy were found. All patients had fever and/or symptoms of acute respiratory illness and chest computed tomography images indicative of COVID-19 pneumonia. Most pregnant women had cesarean delivery (91.7%) and two neonates had low birthweight (< 2 500 g). Biological samples collected immediately after birth from upper respiratory tract (throat or nasopharyngeal) of neonates and placental tissues showed negative results for the presence SARS-CoV-2 by RT-PCR test. No breast milk samples were positive for SARS-CoV-2 and, to date, there is no evidence on the presence of SARS-CoV-2 in breast milk of pregnant women with COVID-19. However, data are still limited and breastfeeding of women with COVID-19 remains a controversial issue. There are no restrictions on the use of milk from a human breast milk bank. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
25. Recommendations for a safety dental care management during SARS-CoV-2 pandemic.
- Author
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Martins-Filho, Paulo Ricardo, de Gois-Santos, Vanessa Tavares, Souza Tavares, Carolina Santos, Magalhães de Melo, Elisama Gomes, do Nascimento-Júnior, Edmundo Marques, and Santana Santos, Victor
- Subjects
- *
SARS-CoV-2 , *DENTAL care , *PANDEMICS , *COVID-19 pandemic , *SARS virus - Abstract
As the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is transmitted mainly through droplets, sneezes and aerosols, there is a high risk of transmission during dental procedures. This report describes measures that can be adopted by oral healthcare personnel to minimize the risk of cross-contamination in clinical practice during the current SARS-CoV-2 pandemic. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
26. COVID-19 and newborn health: systematic review.
- Author
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Duran, Pablo, Berman, Stephen, Niermeyer, Susan, Jaenisch, Thomas, Forster, Thais, de Leon, Rodolfo Gomez Ponce, De Mucio, Bremen, and Serruya, Suzanne
- Subjects
- *
COVID-19 , *INFANT health , *CORD blood , *META-analysis , *SARS-CoV-2 , *ASPHYXIA neonatorum , *KLEBSIELLA infections - Abstract
Objective. To describe perinatal and neonatal outcomes in newborns exposed to SARS-CoV-2. Methods. A systematic review was conducted by searching PubMed Central, LILACS, and Google Scholar using the keywords 'covid ' AND 'newborn' OR 'child' OR 'infant,' on 18 March 2020, and again on 17 April 2020. One researcher conducted the search and extracted data on demographics, maternal outcomes, diagnostic tests, imaging, and neonatal outcomes. Results. Of 256 publications identified, 20 met inclusion criteria and comprised neonatal outcome data for 222 newborns whose mothers were suspected or confirmed to be SARS-CoV-2 positive perinatally (17 studies) or of newborns referred to hospital with infection/pneumonia (3 studies). Most (12 studies) were case-series reports; all were from China, except three (Australia, Iran, and Spain). Of the 222 newborns, 13 were reported as positive for SARS-CoV-2; most of the studies reported no or mild symptoms and no adverse perinatal outcomes. Two papers among those from newborns who tested positive reported moderate or severe clinical characteristics. Five studies using data on umbilical cord blood, placenta, and/or amniotic fluid reported no positive results. Nine studies reported radiographic imaging, including 5 with images of pneumonia, increased lung marking, thickened texture, or high-density nodular shadow. Minor, non-specific changes in biochemical variables were reported. Studies that tested breast milk reported negative SARS-CoV-2 results. Conclusions. Given the paucity of studies at this time, vertical transmission cannot be confirmed or denied. Current literature does not support abstaining from breastfeeding nor separating mothers and newborns. Further evidence and data collection networks, particularly in the Americas, are needed for establishing definitive guidelines and recommendations. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
27. Comparing South Korea and Italy's healthcare systems and initiatives to combat COVID-19.
- Author
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Palaniappan, Ashwin, Dave, Udit, and Gosine, Brandon
- Subjects
- *
COVID-19 , *DEATH rate , *SARS virus , *EDUCATIONAL technology , *SOCIAL contact , *GRADUATE medical education - Abstract
Italy and South Korea have two distinctly different healthcare systems, causing them to respond to public health crises such as the COVID-19 pandemic in markedly different ways. Differences exist in medical education for both countries, allowing South Korean medical graduates to have a more holistic education in comparison to their Italian counterparts, who specialize in medical education earlier on. Additionally, there are fewer South Korean physicians per 1000 people in South Korea compared to Italian physicians per 1000 people in Italy. However, both countries have a national healthcare system with universal healthcare coverage. Despite this underlying similarity, the two countries addressed COVID-19 in nearly opposite manners. South Korea employed technology and the holistic education of its physician community, despite having a smaller proportion of physicians in society, to its advantage by implementing efficacious drive-through centers that test suspected individuals rapidly and with little to no contact with healthcare staff, decreasing the possibility of transmission of COVID-19. Conversely, Italy is presently considered the epicenter of the outbreak in Europe and has recorded the highest death toll of any country outside of mainland China. This is partially due to the reactionary nature of Italy's public health measures compared to South Korea's proactive response. The different healthcare responses of South Korea and Italy can inform decisions made by public health bodies in other countries, especially in countries across the Americas, which can selectively adopt policies that have worked in curtailing the spread of COVID-19 and learn from mistakes made by both countries. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
28. Conhecimentos de pais sobre infecções por herpes virus tipos 1 e 2.
- Author
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Ferreira de Souza, Guilherme, Januario Giesteira, Alessandra, Paes da Silva, Alexandre Marques, Nivoloni Tannure, Patricia, de Carvalho Ferreira, Dennis, Souza Gonçalves, Lucio, Stambovsky, Mayra, Campos Arze, Wilma Nancy, and Ribeiro, Marcia
- Subjects
INFECTIOUS disease transmission ,HERPESVIRUS diseases ,HOSPITALS ,PARENTS ,HEALTH literacy ,DESCRIPTIVE statistics - Abstract
Copyright of Enfermagem Brasil is the property of Atlantica Editora and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
29. Salicylic Acid-Cryotherapy Treatment for Elimination of Potato Virus S from Solanum Tuberosum.
- Author
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Ruiz-Sáenz, Diana R., Ayala-Hernández, Diana D., Niino, Takao, Cruz-Gutiérrez, Esmeralda J., Aquino-Martínez, Jesús G., and López-Delgado, Humberto A.
- Subjects
- *
POTATOES , *THERAPEUTICS , *SALICYLIC acid , *PLANT development , *THERMOTHERAPY , *POTATO diseases & pests - Abstract
Potato virus S (PVS) is one of the most difficult viruses to eliminate by thermotherapy due to its thermal deactivation point. Pre-treatment methods involving salicylic acid (SA) have been successfully carried in conjugation with cryogenic methods to reduce oxidative damage and eliminate viruses. In the present investigation, the effect of SA to protect Solanum tuberosum plants infected with PVS from oxidative damage from subsequent cryotherapy was studied. Vulnerable genotypes to cryogenic protocol were selected, with two SA treatments examined. Potato clones were pretreated with SA (0, 10−5, and 10−6 M), plant development was evaluated and then exposed to cryotherapy. This was followed up by a plant development evaluation and virus testing. After the initial treatment with SA, the plants exhibited an increase in the variables evaluated before cryotherapy. After cryotherapy, between 66.6% and 100% of the treated plants were found to be virus-free compared to control plants which exhibited 0% survival. Thus, the SA-cryotherapy treatment combination described appears to enhance plant survival and eliminate PVS from potato plants. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
30. Pustulosis exantemática generalizada aguda no medicamentosa, una entidad para recordar.
- Author
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Fernanda Ordóñez, María, Giraldo, Daniela, and Patricia Robayo, Martha
- Abstract
Acute generalized exanthematous pustulosis is an infrequent entity, 90% of the cases are associated with the ingestion of drugs. Scarce reports exist regarding non drug-related acute generalized exanthematous pustulosis, the trigger factors described are virus or bacterias, usually as causal agents of upper respiratory tract infections. We present the case of a 19-year old patient who developed superficial pustules starting in the main folds and then becoming generalized, after suffering from an episode of nasopharyngitis, with skin biopsy compatible with acute generalized exanthematous pustulosis, fulfilling diagnostic criteria according to EuroSCAR for such pathology. Since there was a history of an upper respiratory tract infection, with no previous drug intake, the former is considered to be the cause of the clinical case described. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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- View/download PDF
31. Coxsackievirus-induced myocarditis
- Author
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Roger Esmel-Vilomara, Paola Dolader, Gemma Giralt, Queralt Ferrer, Ferran Gran, Institut Català de la Salut, [Esmel-Vilomara R] Cardiología Pediátrica, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. Servei de Cardiologia Pediàtrica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Dolader P, Giralt G, Ferrer Q, Gran F] Servei de Cardiologia Pediàtrica, Vall d’Hebron Hospital Universitari, Barcelona, Spain, and Vall d'Hebron Barcelona Hospital Campus
- Subjects
Miocardi - Malalties - Diagnòstic ,Virosis ,acciones y usos químicos::acciones farmacológicas::usos terapéuticos::antiinfecciosos::antivíricos [COMPUESTOS QUÍMICOS Y DROGAS] ,Management of Technology and Innovation ,Other subheadings::/diagnosis [Other subheadings] ,Otros calificadores::/diagnóstico [Otros calificadores] ,Medicaments antivírics - Ús terapèutic ,enfermedades cardiovasculares::enfermedades cardíacas::miocardiopatías::miocarditis [ENFERMEDADES] ,Cardiovascular Diseases::Heart Diseases::Cardiomyopathies::Myocarditis [DISEASES] ,Virus Diseases::RNA Virus Infections::Picornaviridae Infections::Enterovirus Infections::Coxsackievirus Infections [DISEASES] ,Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Anti-Infective Agents::Antiviral Agents [CHEMICALS AND DRUGS] ,virosis::infecciones por virus ARN::infecciones por Picornaviridae::infecciones por Enterovirus::infecciones por Coxsackievirus [ENFERMEDADES] - Abstract
Acute myocarditis; Coxsackievirus Miocarditis aguda; Virus coxsackie Miocarditis aguda; Virus coxsackie
- Published
- 2022
- Full Text
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32. Diagnóstico y manejo obstétrico de infecciones virales de transmisión vertical
- Author
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Pablo Vial Claro
- Subjects
Virosis ,Complicaciones del embarazo ,Medicine - Abstract
Sin resumen
- Published
- 2017
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- View/download PDF
33. Disease burden affecting pig production in Nigeria: Review of current issues and challenges
- Author
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Ikechukwu Onyebuchi Igbokwe and Chima Victor Maduka
- Subjects
swine ,animal production ,virosis ,bacterial disease ,parasitosis ,gastrointestinal disease ,Animal culture ,SF1-1100 - Abstract
The increased interest in pig production as a complementary source of animal protein has led to pig population growth in Nigeria. Disease outbreaks represent the major constraint to profitable pig production in locations where there is absence of religious barriers to pork production and consumption. Important pig diseases reported in the country and the location of the pig population affected are highlighted in this review. African swine fever, foot-and-mouth disease, brucellosis, trypanosomosis, babesiosis, eperythrozoonosis, helminthosis, coccidiosis and other parasitoses impact on the production system by negatively affecting feed conversion efficiency, reproduction and growth rates as well as causing piglet and adult mortalities. The economic losses due to the disease burden and inadequate intervention strategies are current issues facing the pig production industry. The risk of zoonotic spread of influenza, trypanosomiasis, larva migrans, teniasis, mange, cryptosporidiosis, balantidiasis, ancylostomiasis, entamoebiasis and jigger fleas from affected pigs is real. Disease control strategies through the provision of veterinary resources and services need attention, and a paradigm shift is required for sustainability and expansion of the pig production capacity in the country.
- Published
- 2018
- Full Text
- View/download PDF
34. 'Virus Lento' y Sistema Nervioso
- Author
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Marco Antonio Soza M.
- Subjects
Virosis ,Transmisión ,Sistema nervioso central ,Medicine - Abstract
Sin resumen
- Published
- 2018
35. Evaluación del comportamiento de cultivares y líneas experimentales de poroto común frente a infecciones naturales de virus.
- Author
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Pardina, P. E. Rodríguez, Reyna, P., Campos, R. E., Varela, G., Malavera, A. Peña, and Gerónimo, L. M.
- Abstract
Copyright of Argentinian Horticulture / Horticultura Argentina is the property of Revista Horticultura Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
36. Disinfection for the IN VITRO establishment of onion Ocañera Allium Cepa L
- Author
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Jose Arnoldo Granadillo Cuello and Elibardo Pacheco Carrascal
- Subjects
micropropagation ,establishment ,in vitro ,bacteriosis ,virosis ,fusariums ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
The Ocañera Onion Allium cepa L. is characterized by its asexual planting (bulbs), unlike varieties sown from sexual seed. In this type of sowing, phytosanitary problems are promoted, causing growers to apply pesticides periodically, raising production costs, significantly reducing crop yields and generating economic crisis in the region. Propagation methods have been studied by in-vitro tissue culture, which allows the regeneration of plants of a desirable genotype under aseptic conditions to rid them of diseases. The objective of this research was to standardize a disinfection protocol to establish in-vitro seedlings of ocañera onion, lowering the levels of contamination with bacteria, viruses and fungi. The experimental design was completely randomized, with a variety of Red creole onion and four disinfection treatments. The meristems were inoculated in establishment culture medium. The variable analyzed was the number of contaminated explants at 4, 8 and 12 days after establishment. The lowest contamination index was 12% in treatment D, which was maintained until 12 days after establishment.
- Published
- 2015
- Full Text
- View/download PDF
37. ICTV virus taxonomy profile : Sedoreoviridae 2022
- Author
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Jelle Matthijnssens, Houssam Attoui, Krisztián Bányai, Corina P. D. Brussaard, Pranav Danthi, Mariana del Vas, Terence S. Dermody, Roy Duncan, Qín Fāng (方勤), Reimar Johne, Peter P. C. Mertens, Fauziah Mohd Jaafar, John T. Patton, Takahide Sasaya (笹谷孝英), Nobuhiro Suzuki (鈴木信弘), and Taiyun Wei (魏太云)
- Subjects
Mammals ,Reovirales ,Taxonomía ,Virion ,Genome, Viral ,Plants ,Virus Replication ,Reoviridae ,Birds ,Virology ,Virosis ,ICTV Report ,Animals ,Humans ,Viroses ,Sedoreoviridae ,RNA, Double-Stranded ,Taxonomy - Abstract
Sedoreoviridae is a large family of icosahedral viruses that are usually regarded as non- enveloped with segmented (10–12 linear segments) dsRNA genomes of 18–26 kbp. Sedoreovirids have a broad host range, infecting mammals, birds, crustaceans, arthropods, algae and plants. Some of them have important pathogenic potential for humans (e.g. rotavirus A), livestock (e.g. bluetongue virus) and plants (e.g. rice dwarf virus). Instituto de Biotecnología Fil: Matthijnssens, Jelle. University of Leuven; Bélgica Fil: Attoui, Houssam. National Institute for Agricultural Research (INRA); Francia Fil: Bányai, Krisztián. Veterinary Medical Research Institute; Hungría Fil: Brussaard, Corina P. D. NIOZ Royal Netherlands Institute for Sea Research; Países Bajos Fil: Brussaard, Corina P. D. University of Utrecht; Países Bajos Fil: Danthi, Pranav. Indiana University; Estados Unidos Fil: Del Vas, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular (IABIMO); Argentina Fil: Dermody, Terence S. University of Pittsburgh. School of Medicine; Estados Unidos Fil: Duncan, Roy. Dalhousie University; Canadá Fil: Fāng, Qín. Wuhan Institute of Virology; China Fil: Johne, Reimar. German Federal Institute for Risk Assessment; Alemania Fil: Mertens, Peter P. C. University of Nottingham; Reino Unido Fil: Jaafar, Fauziah Mohd. Ecole Nationale Vétérinaire d’Alfort; Francia Fil: Patton, John T. Indiana University; Estados Unidos Fil: Sasaya, Takahide. National Agriculture and Food Research Organization; Japón Fil: Suzuki, Nobuhiro. Okayama University. Japón Fil: Wei, Taiyun. Fujian Agriculture and Forestry University; China
- Published
- 2022
- Full Text
- View/download PDF
38. Virus del enanismo de los Prunus PDV
- Author
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Piglionico, Damián Gustavo
- Subjects
Damage ,Daños ,Epidemiology ,Virosis ,Peaches ,Durazno ,Fruit Crops ,Viroses ,Frutales ,Epidemiologia ,Virus del Enanismo de los Prunus - Abstract
El enanismo de los Prunus es causado por el Prune Dwarf Virus (PDV), un virus fitopatógeno de la familia Bromoviridae y del género Ilarvirus. La enfermedad fue observada por primera vez en Francia en 1768 y en Inglaterra en 1839. El virus tiene alta incidencia y severidad en todas las áreas donde se cultivan frutales de carozo en el mundo. En relevamientos realizados de alrededor de un 5% de las plantas madres de durazneros inscritas por los viveros en Mendoza, el 36% resultó enfermo con infecciones producidas por un virus (PNRSV 19%, PDV 13% y ACLSV 4% ), mientras que un 15% de las plantas presentaron infecciones mixtas con dos o más de los virus mencionados (Marini et al., 2011). EEA Junin Fil: Piglionico, Damián Gustavo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina
- Published
- 2022
39. Virus del anillado necrótico de los Prunus PNRSV
- Author
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Piglionico, Damián Gustavo
- Subjects
Almonds ,Epidemiology ,Durazno ,Fruit Crops ,Frutales ,Almendra ,Nectarina ,Damage ,Daños ,Ciruela ,Cereza ,Virosis ,Peaches ,Nectarines ,Viroses ,Epidemiologia ,Cherries ,Plums ,Virus del anillado necrótico de los Prunus - Abstract
El virus del anillado necrótico de los Prunus (PNRSV) es un virus fitopatógeno ampliamente difundido que afecta a especies del género Prunus (durazneros, nectarinos, ciruelos, cerezos y almendros). El virus pertenece a la familia Bromoviridae y al género Ilarvirus. En relevamientos realizados de alrededor de un 5% de las plantas madres de durazneros inscritas por los viveros en Mendoza, el 36% resultó enfermo con infecciones producidas por un virus (PNRSV 19%, PDV 13% y ACLSV 4% ), mientras que un 15% de las plantas presentaron infecciones mixtas con dos o más de los virus mencionados (Marini et al., 2011). EEA Junin Fil: Piglionico, Damián Gustavo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina
- Published
- 2022
40. Relevamiento de las principales virosis presentes en sandía y los vectores asociados
- Author
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Ibanez, Julia Magali, Obregon, Veronica Gabriela, Velozo, Lucia, Aguirre, Maximo Raul Alcides, Veron, Rodrigo Guzman, Peichoto, Jose Felix, Lattar, Tatiana Elisabet, and Miño, Valeria Soledad
- Subjects
Hortalizas ,Sandía ,Virosis ,Vegetables ,Enfermedades de las Plantas ,Vectores ,Viroses ,Watermelons ,Horticulture ,Vectors ,Horticultura ,Plant Diseases - Abstract
El cultivo de la sandía es afectado por una gran diversidad de enfermedades, en especial aquellas causadas por virus. El objetivo de este trabajo es realizar un relevamiento de las principales virosis presentes en sandía y los vectores asociados a ellas. EEA Bella Vista Fil: Ibañez, Julia Magalí. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Obregón, Verónica Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Velozo, Lucía. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Aguirre, Máximo Raúl Alcides. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Verón, Rodrigo Guzman. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Peichoto, José Félix. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista. Agencia de Extensión Rural Bella Vista; Argentina Fil: Lattar, Tatiana Elisabet. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Miño, Valeria Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina
- Published
- 2022
41. Virus de las manchas cloróticas del manzano ACLSV
- Author
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Piglionico, Damián Gustavo
- Subjects
Pears ,Ornamental Plants ,Epidemiology ,ACLSV ,Fruit Crops ,Plantas Ornamentales ,Quinces ,Cereza ,Nectarines ,Membrillo ,Epidemiologia ,Cherries ,Plums ,Apples ,Durazno ,Albaricoque ,Frutales ,Apricots ,Nectarina ,Damage ,Daños ,Manzana ,Ciruela ,Peaches ,Virosis ,Viroses ,Pera ,Virus de las Manchas Cloróticas del Manzano - Abstract
El ACLSV es miembro del género Trichovirus, de la familia Flexiviridae. Este virus es uno de los más distribuidos mundialmente e induce una gran variedad de síntomas en frutales. El ACLSV se informó por primera vez en Malus spp. (manzano). También afecta al cultivo de almendro, damasco, cerezo, duraznero, peral, membrillero, ciruelo y algunas especies de plantas ornamentales. En relevamientos realizados de alrededor de un 5% de las plantas madres de durazneros inscritas por los viveros en Mendoza, el 36% resultó enfermo con infecciones producidas por un virus (PNRSV 19%, PDV 13% y ACLSV 4% ), mientras que un 15% de las plantas presentaron infecciones mixtas con dos o más de los virus mencionados (Marini et al., 2011). EEA Junin Fil: Piglionico, Damián Gustavo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junin; Argentina
- Published
- 2022
42. Enrollado de la hoja de la vid o leaf roll Varios
- Author
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Gomez Talquenca, Gonzalo
- Subjects
Damage ,Enrollado de la hoja de la vid ,Daños ,Epidemiology ,Virosis ,Grapevine Leafroll-associated Virus ,Leaf roll ,Viroses ,Vid ,Epidemiologia ,Grapevines ,Virus - Abstract
El enrollado de la hoja de la vid (conocido generalmente como Leafroll) es una enfermedad de naturaleza viral conocida desde el siglo XIX. Se ha reportado en casi todas las regiones vitícolas del mundo y es una de las de mayor impacto económico. Recién a fines de la década de 1970 se identificaron consistentemente partículas virales con esta enfermedad, y hasta el momento no se han podido completar los postulados de Koch, de modo que un conjunto de especies virales permanecen como asociadas a esta enfermedad, sin haber poder concluido ser los agentes causantes. Cinco especies virales de la familia Closteroviridae están asociadas a esta enfermedad: Grapevine Leafroll associated Virus (GLRaV) 1, -3, -4 (Género Ampelovirus); GLRaV-2 (Closterovirus); y GLRaV-7 (Velarivirus). La enfermedad fue descrita en Argentina en el año 1968 (Nadal 1968), pero no fue hasta la década del 2000 que se identificaron los virus asociados. Los virus causantes de esta enfermedad reportados en Argentina (GLRaV-1,-2,-3 y -4) están considerados en el esquema de certificación sanitaria de la vid vigente, normado por la Resolución 199/18 del INASE, debiendo el material certificado estar libre de estos virus. EEA Mendoza Fil: Gomez Talquenca, Gonzalo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina
- Published
- 2022
43. Diagnóstico de agentes bióticos vinculados al síndrome de amarillamiento del garbanzo (sag) en ensayos de la provincia de Córdoba, campaña 2021
- Author
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Pugliese, Bruno Daniel, Pastor, Silvina Estela, Rodriguez Pardina, Patricia, and Edwards Molina, Juan Pablo
- Subjects
Fusarium Oxysporum f. Sp. Ciceris ,Amarillamiento del Garbanzo ,SAG ,Virosis ,Enfermedades de las Plantas ,Chickpeas ,Fungal Diseases ,Garbanzo ,Viroses ,Cicer Arietinum ,Enfermedades Fungosas ,Cordoba (Argentina) ,Plant Diseases - Abstract
El Garbanzo (Cicer arietinum L.) es la tercera leguminosa alimenticia más importante a nivel mundial después del poroto común (Phaseolus vulgaris L.) y la arveja (Pisum sativum L.). India y Turquía son los principales productores que aportan el 73% y el 4,2 % respectivamente a la producción mundial(FAOSTAT 2020). En Argentina el garbanzo es un cultivo que posee un perfil fuertemente exportador, siendo una de las legumbres con menor consumo dentro del país. Las exportaciones aumentaron notablemente en la última década, pasando de un volumen de 17.000 t registrado en 2009 a 136.000 t en 2019 (Calzada y Treboux 2019). En cuanto a la producción nacional, el volumen alcanzado en 2018/19 fue de 189.000 t, con un área de siembra de 151.000 ha, sin embargo, en la campaña 2020/21 ambos variables se redujeron a 85.000 t y 81.000 ha respectivamente, implicando una disminución de alrededor del 50 % aproximadamente (MAGyP 2021.). En Argentina la producción de garbanzo se concentra en las provincias de Salta, Córdoba y Tucumán, y en menor grado en Jujuy, Catamarca y Santiago del Estero. Particularmente en Córdoba, según datos de la Bolsa de cereales de la provincia, hubo una reducción interanual del área de siembra del 39% en el 2021. Esto representa un 58% menos de superficie sembrada respecto del promedio histórico de los últimos 5 años. Entre las principales causantes de esta situación, se encuentran los bajos rendimientos ocasionados por problemas sanitarios y las condiciones climáticas adversas (BCCBA 2021; Farías et al. 2018). Como principal limitante sanitaria desde la campaña 2018 hasta la actualidad, se menciona al síndrome de amarillamiento del garbanzo (SAG) una anomalía del cultivo caracterizada por la presencia de clorosis y necrosis de los tejidos aéreos, y en casos severos, enanismo y muerte de las plantas. Una alta incidencia de plantas con esta sintomatología fue observada tanto en el área de producción de Córdoba (más del 60%) como en el noroeste argentino (NOA). Instituto de Patología Vegetal Fil: Pugliese, Bruno Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Pugliese, Bruno Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Pastor, Silvina Estela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Pastor, Silvina Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Rodriguez Pardina, Patricia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Rodriguez Pardina, Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
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- 2022
44. Asociación entre resultados de pruebas de anticuerpos para SARS-CoV-2 y antecedentes de infecciones virales en una muestra de trabajadores de la Fundación Santa Fe de Bogotá en el año 2020
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Gutiérrez Babativa, Liliana
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Diagnóstico clínico ,Trabajadores de la salud ,Medicina ,Virosis ,Sars-cov-2, dengue, varicela, zika, Chikungunya, sarampión, hepatitis, respuesta inmune, inmunidad humoral ,COVID-19 (Enfermedad) ,Anticuerpos virales - Abstract
Análisis de una cohorte de recolección prospectiva de muestras de anticuerpos para SARS-CoV-2 y su asociación con antecedentes de infecciones virales. Introducción: La pandemia del SARS-CoV2 ha mostrado la necesidad de fortalecer los métodos diagnósticos para que sean más precisos y contribuyan a la modificación de las restricciones causadas desde 2020. Materiales y métodos: Se realizó un análisis de casos y controles anidado a una cohorte de recolección prospectiva de 420 funcionarios de diversas áreas de una institución de cuarto nivel en la ciudad de Bogotá a quienes se les realizo un seguimiento de muestras de RT-PCR (reacción en cadena de la polimerasa) y pruebas cualitativas de anticuerpos durante 6 meses en diferentes momentos, además de un cuestionario de antecedentes autoreportados. Se buscó identificar si hay asociación entre antecedentes de infecciones virales y resultados de anticuerpos. Resultados: Se encontró que, la serología del día 14 y antecedente de infección viral con sarampión, hay asociación a través de la prueba de chi cuadrado (p = 0.005; chi2: 1,0478), sin embargo, algunos de estos resultados pueden considerarse como falsos positivos por posible exposición a otros agentes o ser pacientes asintomáticos. Conclusiones: Aunque no se encontró una asociación estadísticamente significativa, estos resultados permiten abordar nuevas investigaciones que comparen diferentes estrategias diagnósticas y se expandan a otras regiones del país que contribuyan a la disminución de las restricciones causadas por el virus. Magíster en Epidemiología Maestría
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- 2022
45. Evaluación de la virosis del achaparramiento de la alfalfa (Medicago sativa L.) en dos ambientes contrastantes de Argentina.
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Odorizzi, A. S., Cornacchione, M. V., Arolfo, V., Basigalup, D. H., Mijoevich, M. L., and Balzarini, M.
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Copyright of Agriscientia is the property of Revista AgriScientia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2017
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46. To breastfeed or not to breastfeed? Lack of evidence on the presence of SARS-CoV-2 in breastmilk of pregnant women with COVID-19
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Hudson P. Santos, Paulo Ricardo Saquete Martins-Filho, and Victor Santana Santos
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medicine.medical_specialty ,lcsh:Arctic medicine. Tropical medicine ,Coronavirus disease 2019 (COVID-19) ,lcsh:RC955-962 ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Infecciones por coronavirus ,vírus da SARS ,Breastfeeding ,pneumonia, viral ,lcsh:Medicine ,pandemias ,lactancia materna ,Breast milk ,pandemics ,viroses ,coronavirus infection ,sars virus ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Throat ,Infecções por coronavirus ,virus diseases ,medicine ,Current Topic ,030212 general & internal medicine ,virosis ,skin and connective tissue diseases ,Pregnancy ,Obstetrics ,business.industry ,virus del SRAS ,lcsh:Public aspects of medicine ,lcsh:R ,Public Health, Environmental and Occupational Health ,lcsh:RA1-1270 ,medicine.disease ,Pneumonia ,medicine.anatomical_structure ,breast feeding ,business ,Respiratory tract ,aleitamento materno - Abstract
A rapid systematic review was carried out to evaluate the current evidence related to the presence of SARS-CoV-2 in breast milk from pregnant women with COVID-19. Eight studies analyzing the presence of SARS-CoV-2 RNA in the breast milk of 24 pregnant women with COVID-19 during the third trimester of pregnancy were found. All patients had fever and/or symptoms of acute respiratory illness and chest computed tomography images indicative of COVID-19 pneumonia. Most pregnant women had cesarean delivery (91.7%) and two neonates had low birthweight (2 500 g). Biological samples collected immediately after birth from upper respiratory tract (throat or nasopharyngeal) of neonates and placental tissues showed negative results for the presence SARS-CoV-2 by RT-PCR test. No breast milk samples were positive for SARS-CoV-2 and, to date, there is no evidence on the presence of SARS-CoV-2 in breast milk of pregnant women with COVID-19. However, data are still limited and breastfeeding of women with COVID-19 remains a controversial issue. There are no restrictions on the use of milk from a human breast milk bank.Se llevó a cabo una revisión sistemática rápida para evaluar la evidencia disponible sobre la presencia de SARS-CoV-2 en la leche materna de mujeres embarazadas afectadas con COVID-19. Se encontraron ocho estudios que analizaron la presencia de ARN de SARS-CoV-2 en la leche materna de 24 mujeres embarazadas con COVID-19 durante el tercer trimestre del embarazo. Todas las pacientes tenían fiebre o síntomas de enfermedad respiratoria aguda e imágenes de tomografía computarizada de tórax indicativas de neumonía por COVID-19. La mayoría de las mujeres embarazadas (91,7%) tuvieron un parto por cesárea y dos neonatos presentaron bajo peso al nacer (2 500 g). Las muestras biológicas recogidas inmediatamente después del parto de las vías respiratorias superiores (faringe o nasofaringe) de los neonatos y los tejidos placentarios mostraron resultados negativos para SARS-CoV-2 mediante RT-PCR. Ninguna muestra de leche materna fue positiva para SARS-CoV-2 y, hasta la fecha, no hay evidencia de la presencia de SARS-CoV-2 en la leche materna de las mujeres embarazadas con COVID-19. Sin embargo, los datos disponibles todavía son limitados y la lactancia materna en las mujeres con COVID-19 sigue siendo un tema controvertido. No hay restricciones para el uso de leche materna de banco.Foi realizada uma revisão sistemática rápida para avaliar as evidências atuais relacionadas à presença da SARS-CoV-2 no leite materno de mulheres grávidas com COVID-19. Foram encontrados oito estudos analisando a presença de RNA do SARS-CoV-2 no leite materno de 24 gestantes com COVID-19 durante o terceiro trimestre de gravidez. Todas as pacientes apresentavam febre ou sintomas de doença respiratória aguda e imagens de tomografia computadorizada do tórax indicativas de pneumonia pela COVID-19. A maioria das gestantes teve parto cesáreo (91,7%) e dois recém-nascidos tiveram baixo peso ao nascer (2 500 g). As amostras biológicas coletadas imediatamente após o nascimento do trato respiratório superior (faringe ou nasofaringe) de neonatos e tecidos placentários apresentaram resultados negativos para a presença do SARS-CoV-2 pelo teste RT-PCR. Nenhuma amostra de leite materno foi positiva para o SARS-CoV-2 e, até à data, não há evidências da presença do SARS-CoV-2 no leite materno de mulheres grávidas com COVID-19. No entanto, os dados ainda são limitados e a amamentação de mulheres com COVID-19 continua a ser uma questão controversa. Não há restrições ao uso de leite de um banco de leite materno humano.
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- 2020
47. Comparing South Korea and Italy’s healthcare systems and initiatives to combat COVID-19
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Udit Dave, Ashwin Palaniappan, and Brandon Gosine
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sistemas de saúde ,Mainland China ,Economic growth ,medicine.medical_specialty ,lcsh:Arctic medicine. Tropical medicine ,020205 medical informatics ,lcsh:RC955-962 ,Infecciones por coronavirus ,media_common.quotation_subject ,sistemas de salud ,vírus da SARS ,pneumonia, viral ,lcsh:Medicine ,pandemias ,02 engineering and technology ,pandemics ,viroses ,coronavirus infection ,sars virus ,03 medical and health sciences ,0302 clinical medicine ,Political science ,Infecções por coronavirus ,Pandemic ,Health care ,virus diseases ,Current Topic ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,030212 general & internal medicine ,virosis ,media_common ,Holistic education ,business.industry ,virus del SRAS ,Public health ,lcsh:Public aspects of medicine ,lcsh:R ,Public Health, Environmental and Occupational Health ,Reactionary ,Outbreak ,lcsh:RA1-1270 ,Test (assessment) ,business ,health systems - Abstract
Italy and South Korea have two distinctly different healthcare systems, causing them to respond to public health crises such as the COVID-19 pandemic in markedly different ways. Differences exist in medical education for both countries, allowing South Korean medical graduates to have a more holistic education in comparison to their Italian counterparts, who specialize in medical education earlier on. Additionally, there are fewer South Korean physicians per 1000 people in South Korea compared to Italian physicians per 1000 people in Italy. However, both countries have a national healthcare system with universal healthcare coverage. Despite this underlying similarity, the two countries addressed COVID-19 in nearly opposite manners. South Korea employed technology and the holistic education of its physician community, despite having a smaller proportion of physicians in society, to its advantage by implementing efficacious drive-through centers that test suspected individuals rapidly and with little to no contact with healthcare staff, decreasing the possibility of transmission of COVID-19. Conversely, Italy is presently considered the epicenter of the outbreak in Europe and has recorded the highest death toll of any country outside of mainland China. This is partially due to the reactionary nature of Italy's public health measures compared to South Korea's proactive response. The different healthcare responses of South Korea and Italy can inform decisions made by public health bodies in other countries, especially in countries across the Americas, which can selectively adopt policies that have worked in curtailing the spread of COVID-19 and learn from mistakes made by both countries.Italia y Corea del Sur tienen dos sistemas de atención sanitaria claramente diferentes, lo que hace que respondan a crisis de salud pública como la pandemia por COVID-19 de maneras marcadamente distintas. Existen diferencias en la educación médica de ambos países, lo que permite a los graduados de medicina de Corea del Sur tener una educación más holística en comparación con sus homólogos italianos, que siguen una especialización médica de manera más temprana. Además, en Corea del Sur hay menos médicos por cada 1 000 personas en comparación con Italia. Sin embargo, ambos países tienen un sistema nacional de salud con cobertura universal. A pesar de esta similitud subyacente, los dos países abordaron la COVID-19 de maneras casi opuestas. A pesar de contar con una proporción menor de médicos en la sociedad, Corea del Sur empleó la tecnología y la educación holística de su comunidad médica a su favor al implementar centros de examen de personas con sospecha de infección sin descender del automóvil, que permitían una atención rápida y con poco o ningún contacto con el personal de salud, lo que disminuyó la posibilidad de transmisión de la enfermedad. Por el contrario, Italia es considerada actualmente el epicentro del brote en Europa y ha registrado el mayor número de muertes que cualquier otro país fuera de la China continental. Esto se debe en parte a la naturaleza reactiva de las medidas de salud pública de Italia en comparación con la respuesta proactiva de Corea del Sur. Las diferentes respuestas sanitarias de Corea del Sur e Italia pueden orientar las decisiones que deben tomar los organismos de salud pública de otros países, especialmente en la Región de las Américas, que pueden adoptar selectivamente políticas que han funcionado para reducir la propagación de la COVID-19 y aprender de los errores cometidos por ambos países.A Itália e a Coreia do Sul têm dois sistemas de saúde distintos, o que os leva a responder a crises de saúde pública, como a pandemia COVID-19, de formas marcadamente diferentes. Existem diferenças na educação médica dos dois países, permitindo que os médicos sul-coreanos tenham uma educação mais holística em comparação com os seus homólogos italianos, que seguem uma especialização médica mais cedo. Além disso, há menos médicos por 1 000 pessoas na Coreia do Sul do que em Itália. No entanto, ambos os países têm um sistema nacional de saúde com cobertura de saúde universal. Apesar desta semelhança subjacente, os dois países abordaram a COVID-19 de maneiras quase opostas. Apesar de ter uma proporção menor de médicos na sociedade, a Coreia do Sul utilizou a tecnologia e a educação holística de sua comunidade médica a seu favor, implementando centros de rastreio para pessoas com suspeita de infecção sem sair do carro, o que permitiu cuidados imediatos e pouco ou nenhum contacto com o pessoal de saúde, diminuindo assim a possibilidade de transmissão da COVID-19. Por outro lado, a Itália é atualmente considerada o epicentro do surto na Europa e tem registrado o maior número de mortes de qualquer país fora da China continental. Isto deve-se em parte à natureza reactiva das medidas de saúde pública da Itália em comparação com a resposta pró-ativa da Coreia do Sul. As diferentes respostas de saúde da Coreia do Sul e da Itália podem informar as decisões das agências de saúde pública de outros países, especialmente da Região das Américas, que podem adoptar seletivamente políticas que tenham funcionado na redução da disseminação da COVID-19 e aprender com os erros cometidos por ambos os países.
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- 2020
48. Epstein barr virus infection and systemic lupus erythematosus (SLE) debut in an adolescent
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Delfino, Marcos, García, Sofía, Suárez, Rodrigo, Gutiérrez, Stella, Delfino Marcos, Universidad de la República (Uruguay). Facultad de Medicina, García Sofía, Universidad de la República (Uruguay). Facultad de Medicina, Suárez Rodrigo, Universidad de la República (Uruguay). Facultad de Medicina, and Gutiérrez Stella
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VIROSIS ,Medicina do adolescente ,Medicina del adolescente ,ENFERMEDADES AUTOINMUNES ,Systemic lupus erythematosus ,Adolescent medicine ,Lupus eritematoso sistémico ,Anemia Hemolítica ,Hemolytic anemia ,Infectious mononucleosis ,Mononucleose infecciosa ,ANEMIA HEMOLITICA AUTOINMUNE ,INFECCIONES ,Mononucleosis infecciosa - Abstract
Marcos Delfino: Profesor Adjunto de Clínica Pediátrica de la Universidad de la República, Uruguay. Infectología Pediátrica. Pediatra en CASMU IAMPP, Montevideo, Uruguay. Correo electrónico: mebgilu@gmail.com ORCID: 0000-0003-0910-1935.-- Sofía García: 2Doctora en Medicina. Ex Residente de Pediatría del CASMU IAMPP, Montevideo, Uruguay. ORCID: 0000-0002-3402-3257.-- Rodrigo Suárez: Pediatra. Reumatología pediátrica en CASMU IAMPP, Montevideo, Uruguay. ORCID: 0000-0003-1018-9225.-- Stella Gutiérrez: Ex Profesora Agregada de Clínica Pediátrica de la Universidad de la República, Uruguay. Infectología Pediátrica. Jefe del Departamento de Pediatría de CASMU IAMPP, Montevideo, Uruguay. ORCID: 0000-0001-7529-788X Introducción: El lupus eritematoso sistémico (LES), prototipo de enfermedad autoinmune, cursa con empujes y remisiones. Dada la diversidad de presentaciones posibles, su diagnóstico y tratamiento son un reto para el clínico, y se requiere tener un alto índice de sospecha. Objetivo: presentar el caso clínico de un adolescente que debuta con LES a forma de anemia hemolítica, probablemente gatillado por infección por virus de Epstein Barr. Caso clínico: Varón de 14 años, sin antecedentes a destacar. Consulta por fiebre de 7 días de evolución de hasta 39º C, odinofagia, astenia y adinamia. Al examen físico se constata palidez cutáneo mucosa, ictericia, adenopatías cervicales y hepatoesplenomegalia. El laboratorio muestra anemia severa regenerativa con aumento de las bilirrubinas a expensas de la indirecta sin hepatitis. Prueba de Coombs positiva. Anticuerpos específicos para Epstein Barr positivos, con lo que se diagnostica anemia hemolítica secundaria a mononucleosis y se inicia tratamiento corticoideo. En la evolución agrega eritema malar y limitación en flexión de codos y rodillas. Se reciben anticuerpos antinucleares y anti ADN nativo positivos con hipocomplementemia severa. Con diagnóstico de LES se inicia hidroxicloroquina y azatioprina, manteniéndose la prednisona. Conclusiones: Muchos virus (hepatitis C, Parvovirus B19, Epstein Barr y Citomegalovirus) se han descrito como posibles inductores o simuladores de LES. Es necesario mantener un alto índice de sospecha para realizar un diagnóstico oportuno y tratamiento precoz. Introduction: Systemic lupus erythematosus (SLE), prototype of autoimmune disease, progresses with flares and remissions. Given the diversity of possible presentations, its diagnosis and treatment are a challenge for the clinician, and a high index of suspicion is required. Objective: To present the clinical case of an adolescent who debuted with SLE in the form of hemolytic anemia, probably triggered by Epstein Barr virus infection. Clinical case: 14 – year – old male, with no history to highlight. Consultation for fever of 7 days of evolution of up to 39º C, odynophagia, asthenia and adynamia. Physical examination revealed mucous skin pallor, jaundice, cervical lymphadenopathy, and hepatosplenomegaly. The laboratory shows severe regenerative anemia with increased bilirubin at the expense of indirect without hepatitis. Positive Coombs test. Specific antibodies for Epstein Barr were positive, with which hemolytic anemia secondary to mononucleosis was diagnosed and corticosteroid treatment was started. In the evolution, it adds malar erythema and limitation in flexion of the elbows and knees. Positive antinuclear and anti-native DNA antibodies are received with severe hypocomplementemia. With a diagnosis of SLE, hydroxychloroquine and azathioprine were started, maintaining prednisone. Conclusions: Many viruses (hepatitis C, Parvovirus B19, Epstein Barr and Cytomegalovirus) have been described as possible inducers or mimics of SLE. It is necessary to maintain a high index of suspicion for timely diagnosis and early treatment. Introdução: O lúpus eritematoso sistêmico (LES), protótipo de doença autoimune, evolui com impulsos e remissões. Dada a diversidade de apresentações possíveis, seu diagnóstico e tratamento são um desafio para o clínico, sendo necessário um alto índice de suspeição. Objetivo: apresentar o caso clínico de uma adolescente que iniciou com LES na forma de anemia hemolítica, provavelmente desencadeada por infecção pelo vírus Epstein Barr. Caso clínico: Homem de 14 anos, sem antecedentes a destacar. Consulta por febre de 7 dias de evolução de até 39º C, odinofagia, astenia e adinamia. O exame físico revelou palidez cutânea mucosa, icterícia, linfadenopatia cervical e hepatoesplenomegalia. O laboratório mostra anemia regenerativa grave com aumento da bilirrubina em detrimento da indireta sem hepatite. Teste de Coombs positivo. Anticorpos específicos para Epstein Barr foram positivos, com o qual foi diagnosticada anemia hemolítica secundária à mononucleose e iniciado tratamento com corticosteróides. Na evolução, acrescenta eritema malar e limitação na flexão dos cotovelos e joelhos. Anticorpos antinucleares e anti-DNA nativos positivos são recebidos com hipocomplementemia grave. Com diagnóstico de LES, iniciou-se hidroxicloroquina e azatioprina, mantendo-se prednisona. Conclusões: Muitos vírus (hepatite C, Parvovírus B19, Epstein Barr e Citomegalovírus) têm sido descritos como possíveis indutores ou mimetizadores do LES. É necessário manter um alto índice de suspeição para diagnóstico oportuno e tratamento precoce.
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- 2022
49. Virosis en zapallito de tronco
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Perotto, Maria Cecilia
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Watermelon Mosaic Virus ,Papaya Ringspot Virus ,Virus de las Plantas ,Potyvirus ,Argentina ,Virus Mosaico Amarillo Calabacín ,Plant Viruses ,Zapallito de Tronco ,Zucchini Yellow Mosaic Virus ,Pumpkins ,Calabaza (cucúrbita) ,Virus de la Mancha de Anillo de la Papaya ,Virosis ,Cucumber Vein Banding Virus ,Orthotospovirus ,Zapallito Redondo - Abstract
Las principales virosis que afectan al zapallito redondo son las producidas por virus del género Potyvirus. Hay 4 especies de este grupo presentes en Argentina, estos son: Watermelon mosaic virus (WMV), Zucchini yellow mosaic virus (ZYMV), y Papaya ringspot virus (PRSV) y Cucumber vein banding virus (CVBV). Las tres primeras son comunes y las más abundantes en todas las regiones productoras de zapallo en el mundo. La última especie hasta el momento solo se ha mencionado y detectado en el país. También se han detectado virosis producidas por especies de otro género, Orthotospovirus, que son los que comúnmente denominamos tospovirus, se han detectado una especie en sandía y otra en zapallito redondo. Instituto de Patología Vegetal Fil: Perotto, Maria Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Perotto, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina
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- 2022
50. Estudio y diagnóstico de nuevas virosis emergentes en vid (Vitis vinifera L.)
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Morán, Félix, Olmos Castelló, Antonio, Ruiz-García, Ana B., Universidad de Valencia / Departamento de bioquímica y biología molecular, and Olmos, Antonio
- Subjects
PCR ,Phytopathology ,Virosis ,NGS ,Diagnosis ,detección ,HTS ,emergentes ,H20 Plant diseases ,diagnóstico ,Grapevines ,Virus diseases - Abstract
La vid (Vitis vinifera L.) es una de las especies vegetales más susceptibles de padecer infecciones virales. En Europa y España, solo cinco especies virales (GFLV, ArMV, GLRaV-1, GLRaV-3 y GFkV), de las treinta y una patógenas de la vid, se encuentran bajo restricción legislativa. Algunos de estos son virus emergentes no contemplados en la legislación, siendo GPGV, GAMaV, GRLDaV, GVE, GVF, GVT, GRBV y GVCV las principales especies de virus emergentes que pueden constituir una amenaza para los cultivos españoles. Por tanto, el objetivo general de la presente tesis es conocer la situación de las principales virosis emergentes de vid en España y desarrollar herramientas de diagnóstico que puedan implementar programas de prevención temprana, selección sanitaria, certificación y erradicación. Los resultados de la búsqueda de virosis emergentes, realizada en diferentes años, denominaciones de origen y variedades de vid, muestran que: (1) virus como GLRaV-1, GLRaV-2, GLRaV-3, GFkV, GFLV y GRSPaV siguen teniendo una presencia destacada en los viñedos españoles; (2) se han detectado, con prevalencias bajas, y solo en las denominaciones de origen (D.O.) Utiel-Requena y Manchuela, los virus emergentes GPGV y GAMaV, habiendo sido este último detectado por primera vez en España en este estudio; (3) no ha sido detectada la presencia de los virus GVT, GVE, GVF, GRBV, GVCV y GRLDaV. La caracterización genética de los virus emergentes detectados en España ha demostrado que: (1) algunos aislados españoles de GPGV presentan un nuevo polimorfismo, no descrito hasta ahora, que afecta a la proteína de movimiento (MP); (2) existe una alta diversidad genética en los aislados españoles, lo cual sugiere la introducción por múltiples vías de este virus en las D.O. Utiel-Requena y Manchuela; y (3) la caracterización genética de los asilados GAMaV españoles evidencia que estos difieren del resto de los aislados virales descritos en otras partes del mundo, sugiriendo por tanto que la introducción de este virus en España no es reciente. Adicionalmente, se han desarrollado tres nuevos métodos de detección, uno basado en PCR convencional para la detección de GAMaV y dos basados en PCR en tiempo real para la detección y cuantificación absoluta de GRLDaV y GPGV, los cuales han sido aplicados con éxito para el diagnóstico de los tres virus tanto en plantas de vid como en sus posibles vectores de transmisión. Estos nuevos métodos de detección constituyen herramientas útiles para abordar futuros estudios epidemiológicos y prevenir la dispersión de estos patógenos en España y en otros territorios del mundo. Y, por último, se ha identificado por primera el genoma completo del micovirus penicillimonavirus gammaplasmopara, asociado a una nueva sintomatología de vid de etiología desconocida. Los estudios de caracterización molecular y aislamiento de partículas virales de esta especie viral sugieren que podría tratarse del primer virus bipartito de la familia Mymonaviridae.
- Published
- 2022
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