Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017

Detalhes bibliográficos
Autor(a) principal: Lopes-João, A.
Data de Publicação: 2018
Outros Autores: Mesquita, J.R., de Sousa, R., Oleastro, M., Silva, C., Penha-Gonçalves, C., Nascimento, M.S.J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.18/5657
Resumo: INTRODUCTION: Gastrointestinal infections are among the most common foodborne and waterborne diseases in military populations, with direct implications in operational efficiency and force readiness. Through the surveillance system of reportable acute gastrointestinal illness in the Portuguese Army, four norovirus outbreaks were identified between October 2015 and October 2017 in mainland Portugal and the Azores archipelago. The present study documents the epidemiological, clinical and laboratory investigations of these norovirus outbreaks. METHODS: Cases were investigated and epidemiological questionnaires were distributed to all soldiers in each military setting where the outbreaks occurred. Stool samples from soldiers with acute gastroenteritis illness were collected and screened for common enteropathogenic agents. Food and water samples served on the settings were also collected for microbiological investigation. Norovirus-positive samples were further characterised by sequence analysis using a public automated genotyping tool. RESULTS: The four outbreaks affected a total of 99 soldiers among the 618 stationed on base units and in a military exercise. A total of 27 soldiers provided a stool sample, of which 20 were positive for norovirus by real-time PCR. Phylogenetic analysis showed that the noroviruses involved were all genogroup II, namely GII.17, GII.Pe-GII.4 Sydney 2012, GII.P2-GII.2 and GII.P16-GII.2. Of note, 30 soldiers had to receive treatment at the military hospital due to severity of symptoms. CONCLUSION: In this short, two-year surveillance period, a total of four norovirus gastroenteritis outbreaks were detected in the Portuguese Army which caused a considerable morbidity, showing once again the impact of norovirus on Army effectiveness and force readiness.
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spelling Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017Gastrointestinal InfectionsCaliciviridae InfectionsDisease OutbreaksGastroenteritisGenotypeNorovirusPortuguese ArmyMilitary PersonnelEpidemiologyPublic HealthInfecções GastrointestinaisPortugalINTRODUCTION: Gastrointestinal infections are among the most common foodborne and waterborne diseases in military populations, with direct implications in operational efficiency and force readiness. Through the surveillance system of reportable acute gastrointestinal illness in the Portuguese Army, four norovirus outbreaks were identified between October 2015 and October 2017 in mainland Portugal and the Azores archipelago. The present study documents the epidemiological, clinical and laboratory investigations of these norovirus outbreaks. METHODS: Cases were investigated and epidemiological questionnaires were distributed to all soldiers in each military setting where the outbreaks occurred. Stool samples from soldiers with acute gastroenteritis illness were collected and screened for common enteropathogenic agents. Food and water samples served on the settings were also collected for microbiological investigation. Norovirus-positive samples were further characterised by sequence analysis using a public automated genotyping tool. RESULTS: The four outbreaks affected a total of 99 soldiers among the 618 stationed on base units and in a military exercise. A total of 27 soldiers provided a stool sample, of which 20 were positive for norovirus by real-time PCR. Phylogenetic analysis showed that the noroviruses involved were all genogroup II, namely GII.17, GII.Pe-GII.4 Sydney 2012, GII.P2-GII.2 and GII.P16-GII.2. Of note, 30 soldiers had to receive treatment at the military hospital due to severity of symptoms. CONCLUSION: In this short, two-year surveillance period, a total of four norovirus gastroenteritis outbreaks were detected in the Portuguese Army which caused a considerable morbidity, showing once again the impact of norovirus on Army effectiveness and force readiness.BMJ Publishing GroupRepositório Científico do Instituto Nacional de SaúdeLopes-João, A.Mesquita, J.R.de Sousa, R.Oleastro, M.Silva, C.Penha-Gonçalves, C.Nascimento, M.S.J.2018-11-16T16:03:31Z2018-112018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.18/5657engJ R Army Med Corps. 2018 Nov;164(6):419-422. doi: 10.1136/jramc-2018-000991. Epub 2018 Aug 3.0035-866510.1136/jramc-2018-000991info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-20T15:41:00Zoai:repositorio.insa.pt:10400.18/5657Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:40:23.437161Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
title Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
spellingShingle Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
Lopes-João, A.
Gastrointestinal Infections
Caliciviridae Infections
Disease Outbreaks
Gastroenteritis
Genotype
Norovirus
Portuguese Army
Military Personnel
Epidemiology
Public Health
Infecções Gastrointestinais
Portugal
title_short Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
title_full Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
title_fullStr Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
title_full_unstemmed Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
title_sort Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
author Lopes-João, A.
author_facet Lopes-João, A.
Mesquita, J.R.
de Sousa, R.
Oleastro, M.
Silva, C.
Penha-Gonçalves, C.
Nascimento, M.S.J.
author_role author
author2 Mesquita, J.R.
de Sousa, R.
Oleastro, M.
Silva, C.
Penha-Gonçalves, C.
Nascimento, M.S.J.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Nacional de Saúde
dc.contributor.author.fl_str_mv Lopes-João, A.
Mesquita, J.R.
de Sousa, R.
Oleastro, M.
Silva, C.
Penha-Gonçalves, C.
Nascimento, M.S.J.
dc.subject.por.fl_str_mv Gastrointestinal Infections
Caliciviridae Infections
Disease Outbreaks
Gastroenteritis
Genotype
Norovirus
Portuguese Army
Military Personnel
Epidemiology
Public Health
Infecções Gastrointestinais
Portugal
topic Gastrointestinal Infections
Caliciviridae Infections
Disease Outbreaks
Gastroenteritis
Genotype
Norovirus
Portuguese Army
Military Personnel
Epidemiology
Public Health
Infecções Gastrointestinais
Portugal
description INTRODUCTION: Gastrointestinal infections are among the most common foodborne and waterborne diseases in military populations, with direct implications in operational efficiency and force readiness. Through the surveillance system of reportable acute gastrointestinal illness in the Portuguese Army, four norovirus outbreaks were identified between October 2015 and October 2017 in mainland Portugal and the Azores archipelago. The present study documents the epidemiological, clinical and laboratory investigations of these norovirus outbreaks. METHODS: Cases were investigated and epidemiological questionnaires were distributed to all soldiers in each military setting where the outbreaks occurred. Stool samples from soldiers with acute gastroenteritis illness were collected and screened for common enteropathogenic agents. Food and water samples served on the settings were also collected for microbiological investigation. Norovirus-positive samples were further characterised by sequence analysis using a public automated genotyping tool. RESULTS: The four outbreaks affected a total of 99 soldiers among the 618 stationed on base units and in a military exercise. A total of 27 soldiers provided a stool sample, of which 20 were positive for norovirus by real-time PCR. Phylogenetic analysis showed that the noroviruses involved were all genogroup II, namely GII.17, GII.Pe-GII.4 Sydney 2012, GII.P2-GII.2 and GII.P16-GII.2. Of note, 30 soldiers had to receive treatment at the military hospital due to severity of symptoms. CONCLUSION: In this short, two-year surveillance period, a total of four norovirus gastroenteritis outbreaks were detected in the Portuguese Army which caused a considerable morbidity, showing once again the impact of norovirus on Army effectiveness and force readiness.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-16T16:03:31Z
2018-11
2018-11-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.18/5657
url http://hdl.handle.net/10400.18/5657
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv J R Army Med Corps. 2018 Nov;164(6):419-422. doi: 10.1136/jramc-2018-000991. Epub 2018 Aug 3.
0035-8665
10.1136/jramc-2018-000991
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv BMJ Publishing Group
publisher.none.fl_str_mv BMJ Publishing Group
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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