Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain

Background: Noroviruses are one of the principal biological agents associated with the consumption of contaminated food. The objective of this study was to analyse the size and epidemiological characteristics of foodborne outbreaks of gastroenteritis in Catalonia, a region in the northeast of Spain....

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Autores: Martínez, Ana, Domínguez García, Àngela, Torner Gràcia, Núria, Ruiz, Laura, Camps, Neus, Barrabeig i Fabregat, Irene, Arias, César, Álvarez, Josep, Godoy i García, Pere, Balaña, Pilar Jorgina, Pumares, Analía, Bartolomé, Rosa, Ferrer, Dolors, Pérez, Unai, Pintó Solé, Rosa María, Buesa Gómez, Javier, Catalan Viral Gastroenteritis Study Group
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/7441
Acceso en línea:https://hdl.handle.net/2445/7441
Access Level:acceso abierto
Palabra clave:Gastroenteritis
Virosis
Epidemiologia
Catalunya
Norovirus
Epidemiology
Catalonia
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spelling Epidemiology of foodborne Norovirus outbreaks in Catalonia, SpainMartínez, AnaDomínguez García, ÀngelaTorner Gràcia, NúriaRuiz, LauraCamps, NeusBarrabeig i Fabregat, IreneArias, CésarÁlvarez, JosepGodoy i García, PereBalaña, Pilar JorginaPumares, AnalíaBartolomé, RosaFerrer, DolorsPérez, UnaiPintó Solé, Rosa MaríaBuesa Gómez, JavierCatalan Viral Gastroenteritis Study GroupGastroenteritisVirosisEpidemiologiaCatalunyaGastroenteritisNorovirusEpidemiologyCataloniaBackground: Noroviruses are one of the principal biological agents associated with the consumption of contaminated food. The objective of this study was to analyse the size and epidemiological characteristics of foodborne outbreaks of gastroenteritis in Catalonia, a region in the northeast of Spain. Methods: In all reported outbreaks of gastroenteritis associated with food consumption, faecal samples of persons affected were analysed for bacteria and viruses and selectively for parasites. Study variables included the setting, the number of people exposed, age, sex, clinical signs and hospital admissions. The study was carried out from October 2004 to October 2005. Results: Of the 181 outbreaks reported during the study period, 72 were caused by Salmonella and 30 by norovirus (NoV); the incidence rates were 14.5 and 9.9 per 100,000 person-years, respectively. In 50% of the NoV outbreaks and 27% of the bacterial outbreaks (p = 0.03) the number of persons affected was ¿10; 66.7% of NoV outbreaks occurred in restaurants; no differences in the attack rates were observed according to the etiology. Hospitalizations were more common (p = 0.03) in bacterial outbreaks (8.6%) than in NoV outbreaks (0.15%). Secondary cases accounted for 4% of cases in NoV outbreaks compared with 0.3% of cases in bacterial outbreaks (p < 0.001) Conclusion: Norovirus outbreaks were larger but less frequent than bacterial outbreaks, suggesting that underreporting is greater for NoV outbreaks. Food handlers should receive training on the transmission of infections in diverse situations. Very strict control measures on handwashing and environmental disinfection should be adopted in closed or partially-closed institutions.BioMed Central2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/7441Articles publicats en revistes (Medicina)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a http://dx.doi.org/10.1186/1471-2334-8-47BMC Infectious Diseases, 2008, vol. 8, núm. 47http://dx.doi.org/10.1186/1471-2334-8-47cc-by, (c) Martinez et al., 2008http://creativecommons.org/licenses/by/2.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/74412026-05-27T06:46:51Z
dc.title.none.fl_str_mv Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
title Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
spellingShingle Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
Martínez, Ana
Gastroenteritis
Virosis
Epidemiologia
Catalunya
Gastroenteritis
Norovirus
Epidemiology
Catalonia
title_short Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
title_full Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
title_fullStr Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
title_full_unstemmed Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
title_sort Epidemiology of foodborne Norovirus outbreaks in Catalonia, Spain
dc.creator.none.fl_str_mv Martínez, Ana
Domínguez García, Àngela
Torner Gràcia, Núria
Ruiz, Laura
Camps, Neus
Barrabeig i Fabregat, Irene
Arias, César
Álvarez, Josep
Godoy i García, Pere
Balaña, Pilar Jorgina
Pumares, Analía
Bartolomé, Rosa
Ferrer, Dolors
Pérez, Unai
Pintó Solé, Rosa María
Buesa Gómez, Javier
Catalan Viral Gastroenteritis Study Group
author Martínez, Ana
author_facet Martínez, Ana
Domínguez García, Àngela
Torner Gràcia, Núria
Ruiz, Laura
Camps, Neus
Barrabeig i Fabregat, Irene
Arias, César
Álvarez, Josep
Godoy i García, Pere
Balaña, Pilar Jorgina
Pumares, Analía
Bartolomé, Rosa
Ferrer, Dolors
Pérez, Unai
Pintó Solé, Rosa María
Buesa Gómez, Javier
Catalan Viral Gastroenteritis Study Group
author_role author
author2 Domínguez García, Àngela
Torner Gràcia, Núria
Ruiz, Laura
Camps, Neus
Barrabeig i Fabregat, Irene
Arias, César
Álvarez, Josep
Godoy i García, Pere
Balaña, Pilar Jorgina
Pumares, Analía
Bartolomé, Rosa
Ferrer, Dolors
Pérez, Unai
Pintó Solé, Rosa María
Buesa Gómez, Javier
Catalan Viral Gastroenteritis Study Group
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gastroenteritis
Virosis
Epidemiologia
Catalunya
Gastroenteritis
Norovirus
Epidemiology
Catalonia
topic Gastroenteritis
Virosis
Epidemiologia
Catalunya
Gastroenteritis
Norovirus
Epidemiology
Catalonia
description Background: Noroviruses are one of the principal biological agents associated with the consumption of contaminated food. The objective of this study was to analyse the size and epidemiological characteristics of foodborne outbreaks of gastroenteritis in Catalonia, a region in the northeast of Spain. Methods: In all reported outbreaks of gastroenteritis associated with food consumption, faecal samples of persons affected were analysed for bacteria and viruses and selectively for parasites. Study variables included the setting, the number of people exposed, age, sex, clinical signs and hospital admissions. The study was carried out from October 2004 to October 2005. Results: Of the 181 outbreaks reported during the study period, 72 were caused by Salmonella and 30 by norovirus (NoV); the incidence rates were 14.5 and 9.9 per 100,000 person-years, respectively. In 50% of the NoV outbreaks and 27% of the bacterial outbreaks (p = 0.03) the number of persons affected was ¿10; 66.7% of NoV outbreaks occurred in restaurants; no differences in the attack rates were observed according to the etiology. Hospitalizations were more common (p = 0.03) in bacterial outbreaks (8.6%) than in NoV outbreaks (0.15%). Secondary cases accounted for 4% of cases in NoV outbreaks compared with 0.3% of cases in bacterial outbreaks (p < 0.001) Conclusion: Norovirus outbreaks were larger but less frequent than bacterial outbreaks, suggesting that underreporting is greater for NoV outbreaks. Food handlers should receive training on the transmission of infections in diverse situations. Very strict control measures on handwashing and environmental disinfection should be adopted in closed or partially-closed institutions.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/7441
url https://hdl.handle.net/2445/7441
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a http://dx.doi.org/10.1186/1471-2334-8-47
BMC Infectious Diseases, 2008, vol. 8, núm. 47
http://dx.doi.org/10.1186/1471-2334-8-47
dc.rights.none.fl_str_mv cc-by, (c) Martinez et al., 2008
http://creativecommons.org/licenses/by/2.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by, (c) Martinez et al., 2008
http://creativecommons.org/licenses/by/2.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv Articles publicats en revistes (Medicina)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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