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31 results on '"SAMBRI, VITTORIO"'

2. SARS-CoV-2 Co-Infection in Immunocompromised Host Leads to Generation of Recombinant Strain

Author

Zannoli, Silvia, primary, Brandolini, Martina, additional, Marino, Maria Michela, additional, Denicolò, Agnese, additional, Mancini, Andrea, additional, Taddei, Francesca, additional, Arfilli, Valentina, additional, Manera, Martina, additional, Gatti, Giulia, additional, Battisti, Arianna, additional, Grumiro, Laura, additional, Scalcione, Agata, additional, Dirani, Giorgio, additional, and Sambri, Vittorio, additional

Published
2023
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3. Importance of external quality assessment for SARS-CoV-2 antigen detection during the COVID-19 pandemic

Author

Donoso Mantke, Oliver, primary, Corman, Victor M., additional, Taddei, Francesca, additional, McCulloch, Elaine, additional, Niemeyer, Daniela, additional, Grumiro, Laura, additional, Dirani, Giorgio, additional, Wallace, Paul S., additional, Drosten, Christian, additional, Sambri, Vittorio, additional, and Niesters, Hubert G.M., additional

Published
2022
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5. A deletion in the N gene may cause diagnostic escape in SARS-CoV-2 samples

Author

Zannoli, Silvia, primary, Dirani, Giorgio, additional, Taddei, Francesca, additional, Gatti, Giulia, additional, Poggianti, Ilaria, additional, Denicolò, Agnese, additional, Arfilli, Valentina, additional, Manera, Martina, additional, Mancini, Andrea, additional, Battisti, Arianna, additional, and Sambri, Vittorio, additional

Published
2022
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8. Infection with chikungunya virus in Italy: an outbreak in a temperate region

Author

G. Rezza, L. Nicoletti, R. Angelini, R. . Romi, A. C. Finarelli, M. Panning, P. Cordioli, C. Fortuna, S. Boros, F. Magurano, G. Silvi, P. Angelini, M. Dottori, M. G. Ciufolini, G. C. Majori, A. Cassone, for the CHIKV study group: [. . ., SAMBRI, VITTORIO, G. Rezza, L.Nicoletti, R. Angelini, R .Romi, A. C. Finarelli, M. Panning, P. Cordioli, C. Fortuna, S. Boro, F Magurano, G. Silvi, P. Angelini, M. Dottori, M. G. Ciufolini, G.C. Majori, A. Cassone, for the CHIKV study group: [.., V. Sambri, and ]

Subjects
Aedes, Veterinary medicine, biology, Transmission (medicine), business.industry, virus diseases, Outbreak, EPIDEMIA, General Medicine, medicine.disease, medicine.disease_cause, biology.organism_classification, Virology, Case definition, CHIKUNGUNYA, Serology, Medicine, Chikungunya, Alphavirus infection, business, Index case
Abstract

Summary Background Chikungunya virus (CHIKV), which is transmitted by Aedes spp mosquitoes, has recently caused several outbreaks on islands in the Indian Ocean and on the Indian subcontinent. We report on an outbreak in Italy. Methods After reports of a large number of cases of febrile illness of unknown origin in two contiguous villages in northeastern Italy, an outbreak investigation was done to identify the primary source of infection and modes of transmission. An active surveillance system was also implemented. The clinical case definition was presentation with fever and joint pain. Blood samples were gathered and analysed by PCR and serological assays to identify the causal agent. Locally captured mosquitoes were also tested by PCR. Phylogenetic analysis of the CHIKV E1 region was done. Findings Analysis of samples from human beings and from mosquitoes showed that the outbreak was caused by CHIKV. We identified 205 cases of infection with CHIKV between July 4 and Sept 27, 2007. The presumed index case was a man from India who developed symptoms while visiting relatives in one of the villages. Phylogenetic analysis showed a high similarity between the strains found in Italy and those identified during an earlier outbreak on islands in the Indian Ocean. The disease was fairly mild in nearly all cases, with only one reported death. Interpretation This outbreak of CHIKV disease in a non-tropical area was to some extent unexpected and emphasises the need for preparedness and response to emerging infectious threats in the era of globalisation.

Published
2007
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10. Comparative Usutu and West Nile virus transmission potential by local Culex pipiens mosquitoes in north-western Europe

Author

Fros, Jelke J., primary, Miesen, Pascal, additional, Vogels, Chantal B., additional, Gaibani, Paolo, additional, Sambri, Vittorio, additional, Martina, Byron E., additional, Koenraadt, Constantianus J., additional, van Rij, Ronald P., additional, Vlak, Just M., additional, Takken, Willem, additional, and Pijlman, Gorben P., additional

Published
2015
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11. Outbreak of Citrobacter freundii carrying VIM-1 in an Italian Hospital, identified during the carbapenemases screening actions, June 2012

Author

Gaibani, Paolo, primary, Ambretti, Simone, additional, Farruggia, Patrizia, additional, Bua, Gloria, additional, Berlingeri, Andrea, additional, Tamburini, Maria Vittoria, additional, Cordovana, Miriam, additional, Guerra, Luca, additional, Mazzetti, Magda, additional, Roncarati, Greta, additional, Tenace, Ciro, additional, Moro, Maria Luisa, additional, Gagliotti, Carlo, additional, Landini, Maria Paola, additional, and Sambri, Vittorio, additional

Published
2013
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17. Blood culture systems: rapid detection – how and why?

Author

Gaibani, Paolo, primary, Rossini, Giada, additional, Ambretti, Simone, additional, Gelsomino, Francesco, additional, Pierro, Anna Maria, additional, Varani, Stefania, additional, Paolucci, Michela, additional, Landini, Maria Paola, additional, and Sambri, Vittorio, additional

Published
2009
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20. Identification of new potential vaccine candidates against Chlamydia pneumoniae by multiple screenings

Author

Finco, Oretta, primary, Bonci, Alessandra, additional, Agnusdei, Mauro, additional, Scarselli, Maria, additional, Petracca, Roberto, additional, Norais, Nathalie, additional, Ferrari, Germano, additional, Garaguso, Ignazio, additional, Donati, Manuela, additional, Sambri, Vittorio, additional, Cevenini, Roberto, additional, Ratti, Giulio, additional, and Grandi, Guido, additional

Published
2005
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21. Experimental infection by Chlamydia pneumoniae in the hamster

Author

Sambri, Vittorio, primary, Donati, Manuela, additional, Storni, Elisa, additional, Leo, Korinne Di, additional, Agnusdei, Mauro, additional, Petracca, Roberto, additional, Finco, Oretta, additional, Grandi, Guido, additional, Ratti, Giulio, additional, and Cevenini, Roberto, additional

Published
2004
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30. Comparison of ‘time to detection’ values between BacT/ALERT VIRTUO and BacT/ALERT 3D instruments for clinical blood culture samples

Author

Michela Samuelli, Pasqua Schiavone, Arianna Torri, Vittorio Sambri, Stefania Bertini, Maria Federica Pedna, F. Congestrì, Michela Fantini, Congestrì, Francesco, Pedna, Maria Federica, Fantini, Michela, Samuelli, Michela, Schiavone, Pasqua, Torri, Arianna, Bertini, Stefania, and Sambri, Vittorio

Subjects
0301 basic medicine, Time Factors, Time to detection, Bacteremia, medicine.disease_cause, 0302 clinical medicine, Blood culture, 030212 general & internal medicine, Fungemia, Candida, BacT/ALERT 3D system, biology, medicine.diagnostic_test, General Medicine, Antimicrobial, Enterobacteriaceae, Anti-Bacterial Agents, Microorganisms causing sepsis, Infectious Diseases, Staphylococcus aureus, Blood culture system, Pseudomonas aeruginosa, Staphylococcus aureu, Human, Microbiology (medical), Time Factor, Sepsi, 030106 microbiology, Early sepsis detection, lcsh:Infectious and parasitic diseases, Microbiology, 03 medical and health sciences, Sepsis, Anti-Bacterial Agent, Bacteriological Technique, Escherichia coli, medicine, Humans, lcsh:RC109-216, Bacteriological Techniques, Blood culture systems, Bact alert, Microorganisms causing sepsi, VIRTUO system, biology.organism_classification, medicine.disease, Culture Media, Blood Culture, Bacteraemia
Abstract

Objectives The early detection of bacteraemia and fungemia is of paramount importance to guide antimicrobial therapy in septic patients. In this study the ‘time to detection' (TTD) value for the new blood culture system BacT/ALERT VIRTUO (VIRTUO) was evaluated in 1462 positive clinical bottles and compared with the TTD for 1601 positive clinical bottles incubated in the BacT/ALERT 3D system (BTA-3D). Methods The most representative microorganisms isolated from bottles incubated in both blood culture systems were divided into eight categories (in order of frequency): coagulase-negative staphylococci (CoNS), Escherichia coli, Enterobacteriaceae (other than E. coli ), Staphylococcus aureus, Enterococcus spp , viridans group streptococci, Pseudomonas aeruginosa , and Candida spp . Results The comparison of TTD values for the two blood culture systems strongly indicated that growth of the first five groups listed above was detected earlier with VIRTUO than with BTA-3D ( p Conclusions The new VIRTUO blood culture system can reduce the TTD for more than 75% of isolated microorganisms.

Published
2017
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31. Epidemiology and outcome of candidemia in internal medicine wards: A regional study in Italy

Author

Maddalena Giannella, Pierluigi Viale, Fabio Tumietto, Mario Sarti, Giorgio Cioni, Simone Ambretti, Edoardo Carretto, Michele Bartoletti, Francesco Cristini, Sara K. Tedeschi, Vittorio Sambri, Tedeschi, Sara, Tumietto, Fabio, Giannella, Maddalena, Bartoletti, Michele, Cristini, Francesco, Cioni, Giorgio, Ambretti, Simone, Carretto, Edoardo, Sambri, Vittorio, Sarti, Mario, and Viale, Pierluigi

Subjects
Candida albican, Male, 0301 basic medicine, medicine.medical_specialty, Antifungal Agents, Multivariate analysis, Internal medicine ward, Epidemiology, 030106 microbiology, Psychological intervention, Hospital, 03 medical and health sciences, 0302 clinical medicine, Retrospective Studie, Risk Factors, Internal medicine, Candida albicans, Internal Medicine, medicine, Antifungal Agent, Humans, Antifungal treatment, Hospital Mortality, 030212 general & internal medicine, Mortality, Aged, Retrospective Studies, Aged, 80 and over, Cross Infection, Univariate analysis, business.industry, Proportional hazards model, Risk Factor, Incidence (epidemiology), Candidemia, Retrospective cohort study, Length of Stay, Middle Aged, Hospitals, Italy, Female, business, Human, Blood drawing
Abstract

Background More than one-third of candidemia episodes occur in Internal Medicine Wards (IMWs) but only few studies have focused on this setting and specific data about epidemiology, clinical characteristics and risk factors for mortality are scant. Objective To describe epidemiology and to assess risk factors for in-hospital mortality among patients with candidemia in IMWs. Methods Multicenter retrospective cohort study on patients with candidemia cared for in IMWs of an Italian region (Emilia Romagna) from January 2012 to December 2013. Non survivors were compared with survivors; variables with p ≤ 0.1 at univariate analysis were entered into a multivariate Cox regression model. Results 232 patients were included. Overall candidemia incidence was 2.2 cases/1000 admissions. Candida albicans accounted for 59% of cases. Antifungal treatment was started  72 h from blood cultures in 47%, 27% and 12% of patients, respectively; 13.8% of patients received no antifungal treatment. In-hospital mortality was 40%. At multivariate analysis, chronic-obstructive-pulmonary-disease (HR 2.72, 95%CI 1.66–4.45, pÂ

Published
2016
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