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Most studies, aimed at determining the incidence and transmission of SARS-CoV-2 in children and teenagers, have been developed in school settings. Our study conducted surveillance and inferred attack rates focusing on the practice of sports. Prospective and observational study of those attending the sports facilities of Fútbol Club Barcelona (FCB), in Barcelona, Spain, throughout the 2020–2021 season. Participants were young players (from five different sports) and adult workers, who belonged to stable teams (shared routines and were involved in same quarantine rules). Biweekly health questionnaires and SARS-CoV-2 screening were conducted. From the 234 participants included, 70 (30%) both lived and trained in the FCB facilities (Recruitment Pathway 1;RP1) and 164 (70%) lived at their own household and just came to the facilities to train (RP2). During the study, 38 positive cases were identified; none had severe symptoms or needed hospitalization. The overall weekly incidence in the cohorts did not differ compared to the one expected in the community, except for 2 weeks when an outbreak occurred. The attack rate (AR) was three times higher for the participants from RP1, in comparison to those from RP2 (p Conclusion: Physical activities in stable teams are not related to an increased risk of transmission of SARS-CoV-2, since there were the same observed cases than expected in the community. The risk is higher in indoor sports (Basketball vs. Football), and in closed cohort living settings (RP1 vs. RP2). The fulfilment of preventive measures is essential. What is Known:• Despite the low numerical impact caused in paediatric hospitalizations during COVID-19 pandemic, the social impact has been maximum.• The transmission potential in children and teenagers is limited, and it had been widely demonstrated in school settings. What is New:• Group physical activities in children and teenagers are not also related to an increased risk of transmission of SARS-CoV-2, when preventive measures, such as washing hands, and screening protocols are applied.• Routine and semi-professional sports activities seem safe environments to promote during this pandemic.

Purpose Multisystem inflammatory syndrome in children (MIS-C) is a rare but severe disease temporarily related to SARS-CoV-2. We aimed to describe the epidemiological, clinical and laboratory findings of all the MIS-C cases diagnosed in children 39oC (81.6%), nearly 40% had an abnormal echocardiography and 7% coronary aneurysm. Clinical manifestations and laboratory data were not different throughout the variant periods (p > 0.05). Conclusions The rate ratio between MIS-C cases and SARS-CoV-2 infections was significantly lower in the Omicron period for all the age groups, including those not vaccinated, suggesting that the variant could be the main factor for this shift in the MISC trend. Regardless of variant type, the patients had similar phenotypes and severity throughout the pandemic.

We aimed to explore predictors of sustained transitions (those that are maintained for an extra follow-up) between robustness and prefrailty in both directions.Longitudinal population-based cohort.Community-dwelling Spaniards 65 years or older from the Toledo Study of Healthy Ageing.The Fried's frailty phenotype was measured over 3 waves (2006-2009, 2011-2013, and 2014-2017). Multiple logistic regressions compared individuals following the pattern robust-prefrail-prefrail with those who remained robust across waves, and those following the pattern prefrail-robust-robust with those who remained prefrail, for sociodemographic, clinical, life-habits, dependency for activities of daily living, upper and lower extremities' strength variables. The Fried's items of those who remained prefrail and those who became robust were compared.Mean age was 72.3 years (95% CI: 71.8-72.8) and 57.9% (52.7%-63.0%) were women. After multivariate adjustment, predictors (apart from age) of the sustained transition robustness-prefrailty were as follows: number of drugs taken (odds ratio: 1.37; 95% CI: 1.14-1.65), not declaring the amount of alcohol consumed (8.32; 1.78-38.88), and grip strength (0.92 per kg; 0.86-0.99). Predictors of the sustained transition prefrailty-robustness were as follows: drinking alcohol (0.2; 0.05-0.83), uricemia (0.67; 0.49-0.93), number of chair stands in 30 seconds (1.14; 1.01-1.28), and grip strength (1.12; 1.05-1.2). Low grip strength was associated with a lower probability of regaining robustness.Prediction of sustained transitions between the first stages of frailty development can be achieved with a reduced number of variables and noting whether the Fried's item leading to a diagnosis of prefrailty is low grip strength. Our results suggest the need to intensify interventions on deprescription, quitting alcohol, and strengthening of upper and lower limbs.

The results of several clinical trials suggest that continuous positive airway pressure (CPAP) for acute bronchiolitis can be more effective than high-flow nasal cannula (HFNC). The use of HFNC involved a minimum reduction (5%) in admissions to the pediatric intensive care unit (PICU) in our hospital. Our main aim was to evaluate its safety and effectiveness as respiratory support for patients with bronchiolitis in a pediatric general ward. A secondary goal was to compare the admissions to PICU and the invasive mechanical ventilation (IMV) rate of patients treated with HFNC and those treated with HFNC/b-CPAP during the 2018–2019 and 2019–2020 epidemic seasons, respectively. Two prospective single-centre observational studies were performed. For the main aim, a cohort study (CS1) was carried out from 1st of November 2019 to 15th of January 2020. Inclusion criteria were children aged up to 3 months with bronchiolitis treated with b-CPAP support when HFNC failed. Epidemiological and clinical parameters were collected before and 60 min after the onset of CPAP and compared between the responder (R) and non-responders (NR) groups. NR was the group that required PICU admission. One hundred fifty-eight patients were admitted to the ward with bronchiolitis and HFNC. Fifty-seven out of one hundred fifty-eight required b-CPAP. No adverse events were observed. Thirty-two out of fifty-seven remained in the general ward (R-group), and 25/57 were admitted to PICU (NR-group). There were statistically significant differences in respiratory rate (RR) and heart rate (HR) between both groups before and after the initiation of b-CPAP, but the multivariable models showed that the main differences were observed after 60 min of therapy (lower HR, RR, BROSJOD score and FiO2 in the R-group). For the secondary aim, another cohort study (CS2) was performed comparing data from a pre-b-CPAP bronchiolitis season (1st of November 2018 to 15th January 2019) and the b-CPAP season (2019–2020). Inclusion criteria in pre-b-CPAP season were children aged up to 3 months admitted to the same general ward with moderate-severe bronchiolitis and with HFNC support. Admissions to PICU during the CPAP season were significantly reduced, without entailing an increase in the rate of IMV.Conclusion: The implementation of b-CPAP for patients with bronchiolitis in a pediatric ward, in whom HFNC fails, is safe and effective and results in a reduction in PICU admissions. What is Known:• Bronchiolitis is one of the most frequent respiratory infections in children and one of the leading causes of hospitalization in infants.• Several studies suggest that the use of continuous positive airway pressure (CPAP) for acute bronchiolitis can be more effective than the high flow nasal cannula (HFNC). CPAP is a non-invasive ventilation (NIV) therapy used in patients admitted to pediatric intensive care unit (PICU) with progressive moderate-severe bronchiolitis.There is little experience in the literature on the use of continuous positive airway pressure (CPAP) for acute bronchiolitis in a general ward. What is New:• CPAP could be safely and effectively used as respiratory support in young infants with moderate-severe bronchiolitis in a general ward and it reduced the rate of patients who required PICU admission.• Patients' heart and respiratory rate and their FiO2 needs in the first 60 minutes may help to decide whether or not to continue the CPAP therapy in a general ward.

The physiological and agronomic responses of two irrigation systems were compared in ‘Fino 49′ lemon trees (Citrus limon [L.] Burm. fil.). The irrigation systems consisted of different designs of the irrigation installation (same amount of water and irrigation frequency): a conventional design (2L, two drip lines with six drippers per tree), and a design with a larger wetted surface (3L, implementing the conventional design with a third drip line with nine drippers per tree). Results indicated that the 3L design promoted a better distribution of water and fertilisers in the soil profile, improving some gas-exchange parameters in periods of low evaporative demand or after rain. The agronomic response showed two main effects on fruit quality: (1) the total numer of fruits affected by endoxerosis was reduced, and (2) the first harvest (the earliest fruits harvested) moved forward in time. From an economic point of view, economic water productivity was increased, mainly due to an increment in the proportion of first-harvested lemon, but also due to the decrease in lemon produced for the industry (affected by endoxerosis). The 3L irrigation system could be an interesting alternative to favour fruit precocity, improving the use of the available water resources for early lemon tree growers.

BACKGROUND Invasive pneumococcal disease (IPD) is the most important bacterial infection in young children, and the introduction of pneumococcal conjugate vaccines has changed its presentation. This study compared the incidence, characteristics and serotype distribution of IPD before and after the introduction of the pneumococcal conjugate vaccine (PCV13). METHODS Prospective enrolment of patients with IPD aged less than 60 months and admitted to either of 2 tertiary care hospitals between January 2007 and December 2009 (pre-PCV13 period) and January 2012 and June-2016 (PCV13 period). RESULTS We identified 493 cases, 319 in the pre-PCV13 period and 174 in the PCV13 period. The incidence of IPD decreased from 89.7 to 34.4 casos per 100 000 habitantes ( -62%; P

Introduction: Patients with invasive pneumococcal disease (IPD) may require admission into paediatric intensive care units (PICU). The aim of this study is to analyse the epidemiological, clinical, and microbiological characteristics associated with IPD that may require admission to the PICU. Material and methods: A prospective study was conducted on cases of IPD diagnosed in three Paediatric Hospitals in Barcelona between January 2012 and June 2016. An analysis was made of the associations between the admission to PICU and the epidemiological, clinical, and microbiological variables. Results: A total of 263 cases with IPD were included, of which 19% (n = 50) required admission to PICU. Patients with septic shock (7; 100%), meningitis (16; 84.2%), and those with complicated pneumonia (23; 15.2%) were admitted to the PICU. The most frequent complications were pulmonary (35.2%) and neurological (39.5%). The ratio between admission and non-admission to PICU was 4.7 times higher in subjects with an underlying disease. The serotypes associated with PICU admission were 19A (23% of the total of this serotype), serotype 14 (20%), serotype 3 (17%), and serotype 1 (12.5%). Conclusions: IPD required PICU admission in cases of septic shock and meningitis, and less so with complicated pneumonia. The percentage of admissions is greater in children with an underlying disease. Admission into the PICU involves a longer stay, complications during the acute phase, as well as sequelae, particularly neurological ones. The serotypes of the patients that were admitted to PICU were predominantly vaccine serotypes. Resumen: Introducción: La enfermedad neumocócica invasora (ENI) puede requerir ingreso en la unidad de cuidados intensivos pediátricos (UCIP). El objetivo de este trabajo es analizar las características epidemiológicas, clínicas y microbiológicas asociadas a la ENI que predisponen el ingreso en la UCIP. Material y métodos: Estudio prospectivo de casos diagnosticados con ENI en tres hospitales pediátricos de Barcelona entre enero de 2012 y junio de 2016. Se analizaron las asociaciones entre el ingreso en la UCIP y las variables epidemiológicas, clínicas y microbiológicas. Resultados: Se incluyeron 263 casos con ENI. El 19% (n = 50) requirió ingreso en la UCIP. El 100% (7) de los pacientes con shock séptico, 84,2% (16) con meningitis y 15,2% (23) con neumonía complicada ingresaron en la UCIP. Las complicaciones más frecuentes fueron pulmonares (35,2%) y neurológicas (39,5%). La razón entre ingreso y no ingreso en la UCIP fue 4,17 veces mayor en los sujetos con enfermedad de base. Los serotipos asociados al ingreso en la UCIP fueron el 19A (23% del total de este serotipo), el 14 (20%), el 3 (17%) y el serotipo 1 (12,5%). Conclusiones: La ENI requiere ingreso en la UCIP en caso de shock séptico y meningitis, no así, de entrada, la neumonía complicada. El porcentaje de ingresos es mayor en los niños con enfermedad de base. El ingreso en la UCIP conlleva una estancia más prolongada, así como complicaciones durante la fase aguda y secuelas, sobre todo, neurológicas. Los serotipos de los pacientes que ingresaron en la UCIP fueron, predominantemente, serotipos vacunales.

Introduction: The number of patients with complex chronic conditions (CCC) has increased in the last 20 years or so. There is limited data as regards the prevalence of CCC in the paediatric population and its impact on hospital admissions. The main objectives of this study are to determine the proportion of CCC in the paediatric hospital population and compare them with other groups of patients admitted (acute and chronic). Patients and methods: A descriptive, retrospective study was carried out in a tertiary maternity-paediatric hospital (from December 2016 to November 2017). All patients admitted into the Paediatric Department were recruited with a fortnightly frequency. A series of demographic, clinical, and pregnancy data were collected. In order to identify the level of complexity of the patients, the Clinical Risk Group (CRG) was used, with 3 groups being created: acute, chronic, and CCC. Statistics analysis was performed using SPSS v24. Results: A total of 1433 patients were included. The proportion of CCC on the Paediatric Ward was 14.4%. The CCC were older patients, mainly admitted due to decompensation or progression of their underlying disease, had a longer admission time, and required support in the Paediatric Intensive Care Unit (PICU) more often than that of the other sub-groups. Just under half (44.7%) of the CCC were carriers of a technological device. Of the total of long stays (>1 month), 71.3% had CCC. Conclusions: Patients with CCC require long hospital stays, a greater need of intensive care, and use of technology. New approaches to treatment and follow-up need to be established. They should be cost-effective, and at the same time decrease the impact of the disease on the children and their family. Resumen: Introducción: En las últimas décadas se ha incrementado el número de pacientes crónicos complejos (PCC). Existen pocos datos referentes a la prevalencia de PCC en población pediátrica y su impacto en los ingresos hospitalarios. Los objetivos principales de este trabajo son determinar en nuestro medio la proporción de PCC en hospitalización pediátrica y compararlos con otros grupos de pacientes ingresados (agudos y crónicos). Pacientes y métodos: Estudio descriptivo retrospectivo realizado en un hospital materno-infantil terciario (de diciembre 2016 a noviembre 2017). Se reclutaron a todos los pacientes ingresados en el servicio de Pediatría con una periodicidad quincenal. Se recogieron una serie de variables demográficas, clínicas y de gestión. Para identificar el grado de complejidad de los pacientes se utilizó el sistema de clasificación Clinical Risk Group (CRG) y se crearon 3 grupos: agudos, crónicos y PCC. Para el análisis estadístico se usó SPSS v24. Resultados: Se incluyeron 1.433 pacientes. La proporción de PCC en planta de Pediatría fue del 14,4%. Los PCC fueron pacientes de mayor edad, ingresaron principalmente por descompensación o progresión de su enfermedad de base, estuvieron ingresados más tiempo y precisaron soporte en la Unidad de Cuidados Intensivos Pediátricos (UCIP) con mayor frecuencia que los otros subgupos. Un 44,7% de los PCC era portador de dispositivos tecnológicos. Del total de largas estancias (>1 mes), el 71,3% fue de PCC. Conclusiones: Los PCC requieren de estancias hospitalarias largas, mayor necesidad de cuidados intensivos y uso de tecnología. Es necesario plantear nuevos enfoques de tratamiento y seguimiento que sean costo-eficientes a la vez que disminuyan el impacto de la enfermedad en el niño y su familia.

Resumen: Introducción: En las últimas décadas se ha incrementado el número de pacientes crónicos complejos (PCC). Existen pocos datos referentes a la prevalencia de PCC en población pediátrica y su impacto en los ingresos hospitalarios. Los objetivos principales de este trabajo son determinar en nuestro medio la proporción de PCC en hospitalización pediátrica y compararla con la de otros grupos de pacientes ingresados (agudos y crónicos). Pacientes y métodos: Estudio descriptivo retrospectivo realizado en un hospital materno-infantil terciario (de diciembre de 2016 a noviembre de 2017). Se incluyó a todos los pacientes ingresados en el Servicio de Pediatría con una periodicidad quincenal. Se recogieron una serie de variables demográficas, clínicas y de gestión. Para identificar el grado de complejidad de los pacientes se utilizó el sistema de clasificación Clinical Risk Group (CRG) y se crearon 3 grupos: agudos, crónicos y PCC. Para el análisis estadístico se usó SPSS v24. Resultados: Se incluyó a 1.433 pacientes. La proporción de PCC en la planta de Pediatría fue del 14,4%. Los PCC tenían mayor edad, ingresaron principalmente por descompensación o progresión de su enfermedad de base, estuvieron ingresados más tiempo y precisaron soporte en la Unidad de Cuidados Intensivos Pediátricos con mayor frecuencia que los otros subgupos. Un 44,7% de los PCC era portador de dispositivos tecnológicos. Del total de largas estancias (>1 mes), el 71,3% fue de PCC. Conclusiones: Los PCC requieren de estancias hospitalarias largas, tienen mayor necesidad de cuidados intensivos y uso de tecnología. Es necesario plantear nuevos enfoques de tratamiento y seguimiento que sean costo-eficientes y que, a la vez, disminuyan el impacto de la enfermedad en el niño y su familia. Abstract: Introduction: The number of patients with complex chronic conditions (CCC) has increased in the last 20 years or so. There is limited data as regards the prevalence of CCC in the paediatric population and its impact on hospital admissions. The main objectives of this study are to determine the proportion of CCC in the paediatric hospital population and compare them with other groups of patients admitted (acute and chronic). Patients and methods: A descriptive, retrospective study was carried out in a tertiary maternity-paediatric hospital (from December 2016 to November 2017). All patients admitted into the Paediatric Department were recruited with a fortnightly frequency. A series of demographic, clinical, and pregnancy data were collected. In order to identify the level of complexity of the patients, the Clinical Risk Group (CRG) was used, with 3 groups being created: acute, chronic, and CCC. Statistics analysis was performed using SPSS v24. Results: A total of 1,433 patients were included. The proportion of CCC on the Paediatric Ward was 14.4%. The CCC were older patients, mainly admitted due to decompensation or progression of their underlying disease, had a longer admission time, and required support in the Paediatric Intensive Care Unit more often than that of the other sub-groups. Just under half (44.7%) of the CCC were carriers of a technological device. Of the total of long stays (>1 month), 71.3% had CCC. Conclusions: Patients with CCC require long hospital stays, a greater need of intensive care, and use of technology. New approaches to treatment and follow-up need to be established. They should be cost-effective, and at the same time decrease the impact of the disease on the children and their family.

Background SJD a Casa is an acute pediatric hospital-at-home program that was initiated in 2019. For a thorough understanding of acute pediatric homecare programs, an analysis of all related factors, including the medical, social, and economic aspects as well as the family’s experience, is essential. However, no previous study has attempted a comprehensive evaluation of this topic in relation to a complex program such as ours (in terms of the diseases and treatments offered). In this study, we aimed to finely characterize the population that opts for pediatric homecare programs and obtain a thorough understanding of the families’ needs, which will improve our understanding of the program and potentially reveal possible deficiencies. Methods This prospective quantitative and qualitative study involved collection of ordinal data as well as statements made by the caregivers of patients undergoing homecare. A total of 372/532 families were asked to answer two independent questionnaires (preadmission and postadmission) that evaluated their socioeconomic characteristics; expectations and experiences; and factors influencing the preference for homecare. The results were presented as frequencies and comparisons (Fisher’s exact test). Results The families had an adequate social network and a less-than-expected workload, and most families responded that they would have repeated the experience despite the workload. The expectations regarding the caregiver’s well-being at home were better than the actual situation, since some caregivers experienced anxiety or fear. The rating for homecare was better than that for the inpatient care offered before the homecare transfer. Conclusions Families included in the program were content with the homecare program and mostly responded that they would repeat the experience if needed. Although the duration of the program was short-term, some caregivers may experience symptoms of burnout like anxiety, which should be taken into consideration. Despite its limitations, this study offers the possibility of improving our service portfolio by focusing on vulnerable families’ access to the program and the caregiver’s risk of burnout.

Resumen Introduccion . A la par del aumento prevalencia de obesidad y sobrepeso se han incrementado las ventas de productos ultra procesados (UP). Varios de los aditivos que contienen estos productos se han relacionado con la exacerbacion de los sintomas del trastorno por deficit de atencion con hiperactividad (TDAH). Objetivo . Identificar el estado nutricional, consumo de alimentos y presencia de TDAH y explorar la relacion entre alimentacion y TDAH, en alumnos de secundaria de la Ciudad de Mexico. Metodo . Estudio transversal. Un grupo de estudiantes de Medicina fueron capacitados para obtener el Indice de Masa Corporal, consumo de alimentos y TDAH. Se calcularon frecuencias simples de IMC, consumo de alimentos y TDAH. Se utilizaron el coeficiente de correlacion de Spearman y la prueba U de Mann-Whitney para explorar la relacion entre alimentacion y TDAH . Resultados . Se encontro que el 38.1% de los alumnos de secundaria tenia sobrepeso y obesidad. Entre el 18.9% y el 40.5% de ellos consumia mas de 3 productos UP por semana y entre el 16% y 29% mas de tres al dia. Alrededor del 50% de los alumnos no cumplian con las recomendaciones de consumo de frutas, verduras y agua. La prevalencia de casos sospechosos de TDAH fue de 2.5%. El consumo de golosinas se correlaciono con TDAH y sus componentes, el consumo de frituras se asocio estadisticamente solo con hiperactividad. El consumo de frutas se correlaciono inversamente con hiperactividad. Conclusiones . Es necesario redoblar esfuerzos para prevenir el aumento de la obesidad en adolescentes, disminuir el consumo de UP y realizar mas estudios para identificar su relacion con TDAH.

espanolComenzamos este estudio introductorio al monografico sobre los validos espanoles con el analisis de la retorica del valimiento que ofrece la escultura de marmol erigida en honor al duque de Lerma en Denia (1613). En su pedestal, que utilizamos como imagen de portada, hallamos las alegorias de la prospera Fortuna y la Fama sujetando el globo celeste sobre el escudo de armas del duque, para representar el exito del papel del valido compartiendo con el soberano el peso politico del gobierno global de la Monarquia Hispanica, como un nuevo Hercules (valido) que alivia al titan Atlas (rey). Estas alegorias son frecuentes en la representacion simbolica de los ministros favoritos en la Europa moderna. Para enmarcar la decena de estudios que componen este monografico se anade una reflexion sobre algunas claves y tendencias en el estudio de los validos, subrayando la necesidad de profundizar en su familiaridad y en el liderazgo en la gestion y conformacion del espacio cortesano. EnglishThis introductory essay of our dossier devoted to the Spanish Royal Favourites starts with the analysis of the Rhetoric of Power provided by the marble sculpture erected in honour to the Duke of Lerma in Denia (1613). In its pedestal, here used as cover illustration, we find the allegories of prosperous Fortune and Fame holding the celestial globe over the Duke’s coat of arms, in order to perform the success of the Royal Favourite sharing with the King the political weight of the global government of the Spanish Monarchy, as a new Hercules (the Royal Favourite) relieving the Titan Atlas (the King). These allegories are frequent in the symbolic representation of the favourite ministers in Early Modern Europe. In framing the ten essays of our dossier, is added a reflexion about some key issues and research lines on the study of the royal favourites, underlaying the necessity of consider aspects like their familiarity, or their leadership in the management and shaping of court spaces.

Introducción: La educación para la salud juega un papel muy importante para la promoción de la salud, la prevención y limitación del daño. También contribuye al empoderamiento de las personas, individual y colectivamente, para construir una cultura de la salud y tomar decisiones saludables. Como parte de los objetivos de la asignatura Promoción de la Salud en el Ciclo de Vida, y con el propósito de llevar a cabo una experiencia docente, se eligió estudiar “La alimentación, el estado nutricional y su relación con los trastornos de la atención e hiperactividad (TDAH) en estudiantes de secundaria”. Objetivo: Evaluar la utilidad de la investigación-acción en la práctica en comunidad, para favorecer la actividad docente en la obtención de aprendizajes significativos y compromiso social. Método: El de la “investigación-acción”. Un grupo de alumnos de segundo año de la carrera de medicina fue el protagonista del proceso. Se elaboró un proyecto de investigación en el que se destacó la organización de experiencias y conocimientos previos en el área de estudio. Se diseñó un cuestionario sobre alimentación y se utilizó un cuestionario validado sobre TDAH, ambos fueron aplicados por los alumnos de medicina, realizaron la somatometría, impartieron pláticas para una alimentación saludable y elaboraron una base de datos. Después de cada actividad se llevaron a cabo reuniones con ellos para recuperar y organizar la experiencia. Resultados: Los alumnos señalaron que la actividad les permitió integrar lo aprendido previamente, identificar sus limitaciones académicas, caracterizar un problema real de salud pública, aplicar sus conocimientos y desarrollar habilidades e identificar el valor de la promoción de la salud. Conclusiones: La participación en actividades en donde se vincule la investigación con la acción facilita el aprendizaje significativo. Se consideró la práctica educativa como una acción comprometida con el contexto social en el que se vive.

During the past decade, the frail syndrome has acquired great importance due to its detrimental social and psychological consequences. In the present study, we investigate the association between frailty status and well-being (happiness and life satisfaction) among older adults, and we test the role of self-perceived health as potential mediator in such relations. We recruited 1205 older Chilean adults who responded to measures about their objective health status (frailtyrelated indicators), well-being, and self-perceived health. Overall, path analyses showed that frailty status is negatively associated to life satisfaction and happiness, and that self-perceived health works as a mediator for such relations. The social and psychological consequences of the frail syndrome in older adults are discussed. Resumen: Durante la última década, el síndrome de fragilidad ha adquirido gran importancia debido a sus consecuencias sociales y psicológicas perjudiciales. En el presente estudio, investigamos la asociación entre el estado de fragilidad y el bienestar (felicidad y satisfacción con la vida) en los adultos mayores, y evaluamos el papel de la salud autopercibida como potencial mediador de dichas relaciones. Reclutamos a 1205 adultos mayores chilenos que respondieron preguntas acerca de su estado de salud objetivo (indicadores relacionados con el estado de fragilidad), bienestar y autopercepción de salud. En términos generales, los análisis mostraron que el estado de fragilidad se asocia negativamente con la satisfacción vital y la felicidad, y que la salud autopercibida tiene un papel mediador en tales relaciones. Se discuten las consecuencias sociales y psicológicas del síndrome de fragilidad en adultos mayores.

AIM Escherichia coli (E coli) is a known cause of paediatric bacteraemia. The main objective was to characterise the emergency department (ED) presentations of paediatric E coli bacteraemia and secondarily to identify those related to greater severity. METHODS This was a sub-study of a multicentre cross-sectional prospective registry including all with E coli bacteraemia episodes between 2011 and 2016. We used multiple correspondence and cluster analysis to identify different patterns. RESULTS We included 291 patients and 43 met criteria for severe disease (14.3%, 95% confidence interval 11.2-19.3). We identified four types of paediatric E coli bacteraemia presentations. Two (178 patients, 61.2%) were related to well-appearing previously healthy infants with associated urinary tract infection (UTI). Well-appearing children older than 12 months old with underlying disease (n = 60, 20.6%) and non-well-appearing children of different ages (n = 53, 18.2%) corresponded to the other two types; these had associated UTI infrequently and higher severity rate (15% and 50.9%, respectively, higher when compared with the two previous types, P

COVID-19 affects children to a lesser extent than adults but they can still get infected and transmit SARS-CoV-2 to their contacts. Field deployable non-invasive sensitive diagnostic techniques are needed to evaluate the infectivity dynamics of SARS-CoV-2 in pediatric populations and guide public health interventions, particularly if this population is not fully vaccinated. We evaluated the utility of high-throughput Luminex assays to quantify saliva IgM, IgA and IgG antibodies against five SARS-CoV-2 spike (S) and nucleocapsid (N) antigens in a contacts and infectivity longitudinal study in 122 individuals (52 children and 70 adults). We compared saliva versus serum/plasma samples in infected children and adults diagnosed by weekly RT-PCR over 35 days (n=62), and those who consistently tested negative over the same follow up period (n=60), in the Summer of 2020 in Barcelona, Spain. Saliva antibody levels in SARS-CoV-2 RT-PCR positive individuals were significantly higher than in negative individuals and correlated with those measured in sera/plasmas. Asymptomatic infected individuals had higher levels of anti-S IgG than symptomatic individuals, suggesting a protective anti-disease role for antibodies. Higher anti-S IgG and IgM levels in serum/plasma and saliva, respectively, in infected children compared to infected adults could also be related to stronger clinical immunity in them. Among infected children, males had higher levels of saliva IgG to N and RBD than females. Despite overall correlation, individual clustering analysis suggested that responses that may not be detected in blood could be patent in saliva, and vice versa. In conclusion, measurement of SARS-CoV-2-specific saliva antibodies should be considered as a complementary non-invasive assay to serum/plasma to determine COVID-19 prevalence and transmission in pediatric populations before and after vaccination campaigns. The project has been funded by Stavros Niarchos Foundation (SNF), Banco Santander and other private donors of KidsCorona, and Fundació Privada Daniel Bravo Andreu. RR had the support of the Health Department, Catalan Government (PERIS SLT017/20/000224). Development of SARS-CoV-2 reagents was partially supported by the NIAID Centers of Excellence for Influenza Research and Surveillance (CEIRS) contract HHSN272201400008C. ISGlobal receives support from the Spanish Ministry of Science and Innovation through the “Centro de Excelencia Severo Ochoa 2019-2023” Program (CEX2018-000806-S), and support from the Generalitat de Catalunya through the CERCA Program. CISM is supported by the Government of Mozambique and the Spanish Agency for International Development (AECID). Peer Reviewed Article signat per 20 autors/es: Carlota Dobaño (1,2), Selena Alonso (1), Marta Vidal (1), Alfons Jiménez (1,3), Rocío Rubio (1), Rebeca Santano (1), Diana Barrios (1), Gemma Pons Tomas (4), María Melé Casas (4), María Hernández García (4), Mònica Girona-Alarcón (5,6), Laura Puyol (1), Barbara Baro (1), Pere Millat-Martínez (1), Sara Ajanovic (1), Núria Balanza (1), Sara Arias (1), Natalia Rodrigo Melero (7), Carlo Carolis (7), Aleix García-Miquel (8), Elisenda Bonet-Carné (8,9,10), Joana Claverol (5,11), Marta Cubells (5,11), Claudia Fortuny (5,12), Victoria Fumadó (5,12), Anna Codina (13), Quique Bassat (1,3,4,14,15), Carmen Muñoz-Almagro (3,5,16,17), Mariona Fernández de Sevilla (3,4,5), Eduard Gratacós (8,9,18), Luis Izquierdo (1,2), Juan José García-García (3,4,5), Ruth Aguilar (1), Iolanda Jordan (3,5,6) and Gemma Moncunill (1,2) // (1) ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain, (2) Consorcio de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, Madrid, Spain, (3) Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain, (4) Pediatrics Department, Hospital Sant Joan de Déu, Universitat de Barcelona, Esplugues, Spain, (5) Institut de Recerca Sant Joan de Déu, Esplugues, Spain, (6) Paediatric Intensive Care Unit, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain, (7) Biomolecular Screening and Protein Technologies Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain, (8) Fetal Medicine Research Center (Hospital Clínic and Hospital Sant Joan de Déu), Universitat de Barcelona, Barcelona, Spain, (9) Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain, (10) Universitat Politècnica de Catalunya, BarcelonaTech, Barcelona, Spain, (11) Fundació Sant Joan de Déu, Barcelona, Spain, (12) Infectious Diseases Department, Hospital Sant Joan de Déu, Barcelona, Spain, (13) Biobank Hospital Sant Joan de Déu, Barcelona, Spain, (14) Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique, (15) Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain, (16) Department of Medicine, Universitat Internacional de Catalunya, Barcelona, Spain, (17) Molecular Microbiology Department, Hospital Sant Joan de Déu, Esplugues, Spain, (18) Center for Biomedical Research on Rare Diseases (CIBER-ER), Madrid, Spain

Background: During the COVID-19 pandemic, lockdown strategies have been widely used to contain SARS-CoV-2 virus spread. Children and adolescents are especially vulnerable to suffering psychological effects as result of such measures. In Spain, children were enforced to a strict home lockdown for 42 days during the first wave. Here, we studied the effects of lockdown in children and adolescents through an online questionnaire.Methods: A cross-sectional study was conducted in Spain using an open online survey from July (after the lockdown resulting from the first pandemic wave) to November 2020 (second wave). We included families with children under 16 years-old living in Spain. Parents answered a survey regarding the lockdown effects on their children and were instructed to invite their children from 7 to 16 years-old (mandatory scholar age in Spain) to respond a specific set of questions. Answers were collected through an application programming interface system, and data analysis was performed using R.Results: We included 1,957 families who completed the questionnaires, covering a total of 3,347 children. The specific children's questionnaire was completed by 167 kids (7–11 years-old), and 100 adolescents (12–16 years-old). Children, in general, showed high resilience and capability to adapt to new situations. Sleeping problems were reported in more than half of the children (54%) and adolescents (59%), and these were strongly associated with less time doing sports and spending more than 5 h per day using electronic devices. Parents perceived their children to gain weight (41%), be more irritable and anxious (63%) and sadder (46%). Parents and children differed significantly when evaluating children's sleeping disturbances.Conclusions: Enforced lockdown measures and isolation can have a negative impact on children and adolescent's mental health and well-being. In future waves of the current pandemic, or in the light of potential epidemics of new emerging infections, lockdown measures targeting children, and adolescents should be reconsidered taking into account their infectiousness potential and their age-specific needs, especially to facilitate physical activity and to limit time spent on electronic devices.

Background: Surveillance tools to estimate viral transmission dynamics in young populations are essential to guide recommendations for school opening and management during viral epidemics. Ideally, sensitive techniques are required to detect low viral load exposures among asymptomatic children. We aimed to estimate SARS-CoV-2 infection rates in children and adult populations in a school-like environment during the initial COVID-19 pandemic waves using an antibody-based field-deployable and non-invasive approach. Methods: Saliva antibody conversion defined as ≥ 4-fold increase in IgM, IgA, and/or IgG levels to five SARS-CoV-2 antigens including spike and nucleocapsid constructs was evaluated in 1509 children and 396 adults by high-throughput Luminex assays in samples collected weekly in 22 summer schools and 2 pre-schools in 27 venues in Barcelona, Spain, from June 29th to July 31st, 2020. Results: Saliva antibody conversion between two visits over a 5-week period was 3.22% (49/1518) or 2.36% if accounting for potentially cross-reactive antibodies, six times higher than the cumulative infection rate (0.53%) assessed by weekly saliva RT-PCR screening. IgG conversion was higher in adults (2.94%, 11/374) than children (1.31%, 15/1144) (p=0.035), IgG and IgA levels moderately increased with age, and antibodies were higher in females. Most antibody converters increased both IgG and IgA antibodies but some augmented either IgG or IgA, with a faster decay over time for IgA than IgG. Nucleocapsid rather than spike was the main antigen target. Anti-spike antibodies were significantly higher in individuals not reporting symptoms than symptomatic individuals, suggesting a protective role against COVID-19. Conclusion: Saliva antibody profiling including three isotypes and multiplexing antigens is a useful and user-friendlier tool for screening pediatric populations to detect low viral load exposures among children, particularly while they are not vaccinated and vulnerable to highly contagious variants, and to recommend public health policies during pandemics. This work was supported by the Departament de Salut, Generalitat de Catalunya (grant number SLT006/17/00109). L.I. work was supported by PID2019-110810RB-I00 grant from the Spanish Ministry of Science & Innovation. Development of SARS-CoV-2 reagents was partially supported by the National Institute of Allergy and Infectious Diseases Centers of Excellence for Influenza Research and Surveillance (contract number HHSN272201400008C). ISGlobal receives support from the Spanish Ministry of Science and Innovation through the “Centro de Excelencia Severo Ochoa 2019-2023” Program (CEX2018-000806-S), and support from the Generalitat de Catalunya through the CERCA Program

Sarcopenia and frailty have been shown separately to predict disability and death in old age. Our aim was to determine if sarcopenia may modify the prognosis of frailty regarding both mortality and disability, raising the existence of clinical subtypes of frailty depending on the presence of sarcopenia.A Spanish longitudinal population-based study.The population consists of 1531 participants (65 years of age) from the Toledo Study of Health Aging.Sarcopenia and frailty were assessed following Foundation for the National Institutes of Health criteria and the Fried Frailty Phenotype, respectively. Mortality was assessed using the National Death Index. Functional status was determined using Katz index. We ran multivariate logistics and proportional hazards models adjusting for age, sex, baseline function, and comorbidities.Mean age was 75.4 years (SD 5.9). Overall, 70 participants were frail (4.6%), 565 prefrail (36.9%), and 435 sarcopenic (28.4%). Mean follow-up was 5.5 and 3.0 years for death and worsening function, respectively. Furthermore, 184 participants died (12%) and 324 worsened their functioning (24.8%). Frailty and prefrailty were associated with mortality and remained significant after adjustment by sarcopenia [hazard risk (HR) 3.09, 95% confidence interval (CI) 1.84-5.18; P.001; HR 1.58, 95% CI 1.12-2.24, P = .01]. However, the association of sarcopenia with mortality was reduced and became nonsignificant (HR 1.43, 95% CI 0.99-2.07, P = .057) when both frailty and sarcopenia were included in the same model. In the disability model, frailty and sarcopenia showed a statistically significant interaction (P = .016): both had to be present to predict worsening of disability.Sarcopenia plays a relevant role in the increased risk of functional impairment associated to frailty, but that seems not to be the case with mortality. This finding raises the need of assessing sarcopenia as a cornerstone of the clinical work after diagnosing frailty.

As a consequence of phytosanitary treatments on crops a volume of agro-waste water containing pesticide residues from remnants and rinse of the treatment machinery is usually generated. These residues can become a danger to the environment and human health. Therefore, three pilot facility located in different farms were developed and used for wastewater detoxification containing four neonicotinoid insecticides (thiamethoxam, imidacloprid, acetamiprid and thiacloprid) by means of heterogeneous photocatalysis (TiO2 in tandem with Na2S2O8) and natural sunlight. Previously, the catalyst load (300 mg L−1) and oxidant concentration (300 mg L−1) were optimized at lab-scale using a photoreactor. The remaining percentage of the insecticides were in the range 0–47% for thiamethoxam, 0.1–33% for imidacloprid, 2–66% for acetamiprid and 0.02–60% for thiacloprid of the total initial mass. The observed differences for each insecticide in same farm could be due to total initial concentration of pollutant due to others pesticides (non-neonicotinoid insecticides) used in the farms, and the different physical-chemicals characteristics of the water used to fill and wash of treatment equipment. The results obtained have demonstrated a cost-effective viable alternative to degrade the neonicotinoids insecticide residues contained in these agro-wastewater, with an innovative and energetically efficient facility placed in the farms.

AIM The aim was to analyze the epidemiological, microbiological and clinical characteristics of patients with complicated pneumococcal pneumonia with pleural effusion (PE) or empyema. METHOD Prospective study in three Catalan hospitals in persons aged

Resumen: Introducción: La información existente sobre el impacto de la gripe en la población infantil española es escasa. El presente trabajo pretende aumentar este conocimiento estudiando aspectos clave como la incidencia de hospitalización, clínica, comorbilidades y el estado vacunal en los niños hospitalizados. Métodos: Estudio retrospectivo, observacional, por revisión de historias clínicas, en menores de 15 años hospitalizados por gripe adquirida en la comunidad, confirmada microbiológicamente, durante 2 temporadas gripales (2014-2015 y 2015-2016). El estudio se realizó en 10 hospitales de 6 ciudades, que atienden aproximadamente al 12% de la población infantil española. Resultados: Fueron hospitalizados 907 niños con diagnóstico principal de gripe (447 50%) de los casos. Una gran parte de las formas graves de gripe en población infantil podrían ser evitada si se cumplieran las indicaciones actuales de vacunación. Abstract: Introduction: There are only a limited number of studies on the impact of influenza in the Spanish child population. The present work intends to increase this knowledge by studying some key aspects, such as the incidence of hospital admissions, clinic variables, comorbidities, and the vaccination status in the hospitalised children. Methods: A retrospective, observational study was conducted by reviewing the medical records of children under 15 years and hospitalised due to community acquired influenza confirmed microbiologically, during 2 ́flu seasons (2014-2015 and 2015-2016). The study was carried out in 10 hospitals of 6 cities, which represent approximately 12% of the Spanish child population. Results: A total of 907 children were admitted to hospital with main diagnosis of influenza infection (447 10 years. Admission to the PICU was required in 10% (92) of the cases, mainly due to acute respiratory failure. Conclusion: Influenza continues to be an important cause of hospitalisation in the Spanish child population. Children 50%) of the cases. Many of the severe forms of childhood influenza that occur today could be avoided if current vaccination guidelines were met.

Introduction: There are only a limited number of studies on the impact of influenza in the Spanish child population. The present work intends to increase this knowledge by studying some key aspects, such as the incidence of hospital admissions, clinic variables, comorbidities, and the vaccination status in the hospitalised children. Methods: A retrospective, observational study was conducted by reviewing the medical records of children under 15 years and hospitalised due to community acquired influenza confirmed microbiologically, during 2 ́flu seasons (2014–2015 and 2015–2016). The study was carried out in 10 hospitals of 6 cities, which represent approximately 12% of the Spanish child population. Results: A total of 907 children were admitted to hospital with main diagnosis of influenza infection (447 10 years. Admission to the PICU was required in 10% (92) of the cases, mainly due to acute respiratory failure. Conclusion: Influenza continues to be an important cause of hospitalization in the Spanish child population. Children 50%) of the cases. Many of the severe forms of childhood influenza that occur today could be avoided if current vaccination guidelines were met. Resumen: Introducción: La información existente sobre el impacto de la gripe en la población infantil española es escasa. El presente trabajo pretende aumentar este conocimiento estudiando aspectos clave como la incidencia de hospitalización, clínica, comorbilidades y el estado vacunal en los niños hospitalizados. Métodos: Estudio retrospectivo, observacional, por revisión de historias clínicas, en menores de 15 años hospitalizados por gripe adquirida en la comunidad, confirmada microbiológicamente, durante 2 temporadas gripales (2014-2015 y 2015-2016). El estudio se realizó en 10 hospitales de 6 ciudades, que atienden aproximadamente al 12% de la población infantil española. Resultados: Fueron hospitalizados 907 niños con diagnóstico principal de gripe (447 50%) de los casos. Una gran parte de las formas graves de gripe en población infantil podrían ser evitada si se cumplieran las indicaciones actuales de vacunación.

BACKGROUND Although home hospitalization has been a well-known and widespread practice for some time in the adult population, it has not been the same case in the pediatric setting. Simultaneously, telemedicine tools are a facilitator of the change in the health care model, which is increasingly focused on home care. In a pioneering way in Spain, the in-home hospitalization program of the Hospital Sant Joan de Déu in Barcelona allows the child to be in their home environment at the time they are being monitored and clinically followed by the professionals. Besides being the preferred option for families, previous experience suggests that pediatric home hospitalization reduces costs, primarily thanks to savings on the structural cost of the stay. OBJECTIVE The aim of this study is to compare the average cost of a discharge by tele–home care with the usual care and to analyze the main drivers of the differential costs of both care models. METHODS A cost-minimization analysis is conducted under a hospital’s perspective, based on observational data, and estimated retrospectively. A historical control group of similar patients in terms of clinical casuistry to children hospitalized at home was used for comparison. RESULTS A 24-hour stay at the hospital costs US $574.19, while the in-home hospitalization costs US $301.71 per day, representing a saving of almost half (48%) of the cost compared to usual care. The main saving drivers were the personnel costs (US $102.83/US $284.53, 35.5% of the total), intermediate noncare costs (US $6.09/US $284.53, 33.17%), and structural costs (US $55.16/US $284.53, 19.04%). Home hospitalization involves a total stay 27.61% longer, but at almost half the daily cost, and thus represents a saving of US $176.70 (9.01%) per 24-hour stay. CONCLUSIONS The cost analysis conducted under a hospital perspective shows that pediatric tele–home care is 9% cheaper compared to regular hospital care. These results motivate the most widespread implementation of the service from the point of view of economic efficiency, adding to previous experiences that suggest that it is also preferable from the perspective of user satisfaction.

COVID-19 affects children to a lesser extent than adults but they can still get infected and transmit SARS-CoV-2 to their contacts. Field deployable non-invasive sensitive diagnostic techniques are needed to evaluate the infectivity dynamics of the coronavirus in pediatric populations and guide public health interventions.We evaluated the utility of high-throughput Luminex-based assays applied to saliva samples to quantify IgM, IgA and IgG antibodies against five SARS-CoV-2 spike (S) and nucleocapsid (N) antigens in the context of a contacts and infectivity longitudinal study. We compared the antibody levels obtained in saliva versus serum/plasma samples from a group of children and adults tested weekly by RT-PCR over 35 days and diagnosed as positive (n=58), and a group of children and adults who consistently tested negative over the follow up period (n=61), in the Summer of 2020 in Barcelona, Spain.Antibody levels in saliva samples from individuals with confirmed RT-PCR diagnosis of SARS-CoV-2 infection were significantly higher than in negative individuals and correlated with those measured in sera/plasmas. Higher levels of anti-S IgG were found in asymptomatic individuals that could indicate protection against disease in infected individuals. Higher anti-S IgG and IgM levels in serum/plasma and saliva, respectively, in infected children compared to infected adults could also be related to stronger clinical immunity in them. Among infected children, males had higher levels of saliva IgG to N and RBD than females. Despite overall correlation, individual clustering analysis suggested that responses that may not be detected in blood could be patent in saliva, and vice versa, and therefore that both measurements are complementary.In addition to serum/plasma, measurement of SARS-CoV-2-specific saliva antibodies should be considered as a complementary non-invasive assay to better estimate the percentage of individuals who have experienced coronavirus infection. Saliva antibody detection could allow determining COVID-19 prevalence in pediatric populations, alternative to bleeding or nasal swab, and serological diagnosis following vaccination.