Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
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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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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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