Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea

<p>Abstract</p> <p>Background</p> <p>Gastrointestinal symptoms are not an uncommon manifestation of an influenza virus infection. In the present study, we aimed to investigate the presence of influenza viruses in the stools of adult patients consulting their general pra...

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Main Authors: Arena Christophe, Amoros Jean, Vaillant Véronique, Balay Katia, Chikhi-Brachet Roxane, Varesi Laurent, Arrighi Jean, Blanchon Thierry, Carrat Fabrice, Hanslik Thomas, Falchi Alessandra
Format: Article
Language:English
Published: BMC 2012-06-01
Series:Virology Journal
Subjects:
Online Access:http://www.virologyj.com/content/9/1/116
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author Arena Christophe
Amoros Jean
Vaillant Véronique
Balay Katia
Chikhi-Brachet Roxane
Varesi Laurent
Arrighi Jean
Blanchon Thierry
Carrat Fabrice
Hanslik Thomas
Falchi Alessandra
author_facet Arena Christophe
Amoros Jean
Vaillant Véronique
Balay Katia
Chikhi-Brachet Roxane
Varesi Laurent
Arrighi Jean
Blanchon Thierry
Carrat Fabrice
Hanslik Thomas
Falchi Alessandra
author_sort Arena Christophe
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Gastrointestinal symptoms are not an uncommon manifestation of an influenza virus infection. In the present study, we aimed to investigate the presence of influenza viruses in the stools of adult patients consulting their general practitioner for uncomplicated acute diarrhea (AD) and the proportion of concurrent infections by enteric and influenza viruses.</p> <p>Method</p> <p>A case-control study was conducted from December 2010 to April 2011. Stool specimens were collected and tested for influenza viruses A (seasonal A/H3N2 and pandemic A/H1N1) and B, and for four enteric viruses (astrovirus, group A rotavirus, human enteric adenovirus, norovirus of genogroups I – NoVGI - and genogroup II - NoVGII).</p> <p>Results</p> <p>General practitioners enrolled 138 cases and 93 controls. Of the 138 stool specimens collected, 92 (66.7%) were positive for at least one of the four enteric viruses analysed and 10 (7.2%) tested positive for one influenza virus. None of these 10 influenza positive patients reported respiratory symptoms. In five influenza-positive patients (3.6%), we also detected one enteric virus, with 4 of them being positive for influenza B (2 had co-detection with NoVGI, 1 with NoVGII, and 1 with astrovirus). None of the 93 controls tested positive for one of the enteric and/or other influenza viruses we investigated.</p> <p>Conclusions</p> <p>In this study we showed that the simultaneous detection of influenza and enteric viruses is not a rare event. We have also reported, for the first time in general practice, the presence of seasonal and pandemic influenza viruses in the stools of adult patients consulting for uncomplicated AD. A simultaneous investigation of enteric and influenza viruses in patients complaining of gastrointestinal symptoms could be useful for future studies to better identify the agents responsible for AD.</p>
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spelling doaj.art-edfc7c5d8daa493b8908fda261ecdb152022-12-22T01:50:06ZengBMCVirology Journal1743-422X2012-06-019111610.1186/1743-422X-9-116Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrheaArena ChristopheAmoros JeanVaillant VéroniqueBalay KatiaChikhi-Brachet RoxaneVaresi LaurentArrighi JeanBlanchon ThierryCarrat FabriceHanslik ThomasFalchi Alessandra<p>Abstract</p> <p>Background</p> <p>Gastrointestinal symptoms are not an uncommon manifestation of an influenza virus infection. In the present study, we aimed to investigate the presence of influenza viruses in the stools of adult patients consulting their general practitioner for uncomplicated acute diarrhea (AD) and the proportion of concurrent infections by enteric and influenza viruses.</p> <p>Method</p> <p>A case-control study was conducted from December 2010 to April 2011. Stool specimens were collected and tested for influenza viruses A (seasonal A/H3N2 and pandemic A/H1N1) and B, and for four enteric viruses (astrovirus, group A rotavirus, human enteric adenovirus, norovirus of genogroups I – NoVGI - and genogroup II - NoVGII).</p> <p>Results</p> <p>General practitioners enrolled 138 cases and 93 controls. Of the 138 stool specimens collected, 92 (66.7%) were positive for at least one of the four enteric viruses analysed and 10 (7.2%) tested positive for one influenza virus. None of these 10 influenza positive patients reported respiratory symptoms. In five influenza-positive patients (3.6%), we also detected one enteric virus, with 4 of them being positive for influenza B (2 had co-detection with NoVGI, 1 with NoVGII, and 1 with astrovirus). None of the 93 controls tested positive for one of the enteric and/or other influenza viruses we investigated.</p> <p>Conclusions</p> <p>In this study we showed that the simultaneous detection of influenza and enteric viruses is not a rare event. We have also reported, for the first time in general practice, the presence of seasonal and pandemic influenza viruses in the stools of adult patients consulting for uncomplicated AD. A simultaneous investigation of enteric and influenza viruses in patients complaining of gastrointestinal symptoms could be useful for future studies to better identify the agents responsible for AD.</p>http://www.virologyj.com/content/9/1/116Influenza virusEnteric virusStoolsCo-infectionGeneral practice
spellingShingle Arena Christophe
Amoros Jean
Vaillant Véronique
Balay Katia
Chikhi-Brachet Roxane
Varesi Laurent
Arrighi Jean
Blanchon Thierry
Carrat Fabrice
Hanslik Thomas
Falchi Alessandra
Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
Virology Journal
Influenza virus
Enteric virus
Stools
Co-infection
General practice
title Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
title_full Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
title_fullStr Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
title_full_unstemmed Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
title_short Simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
title_sort simultaneous investigation of influenza and enteric viruses in the stools of adult patients consulting in general practice for acute diarrhea
topic Influenza virus
Enteric virus
Stools
Co-infection
General practice
url http://www.virologyj.com/content/9/1/116
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