Environment: a potential source of animal and human infection with influenza A (H5N1) virus.

Influenza and Other Respiratory Viruses
Srey Viseth HormPhilippe Buchy

Abstract

Very little is known regarding the persistence of highly pathogenic avian influenza H5N1 viruses in natural settings during outbreaks in tropical countries, although environmental factors may well play a role in the persistence and in the transmission of H5N1 virus. To investigate various environmental compartments surrounding outbreak areas as potential sources for H5N1 virus transmission. Environmental specimens were collected following outbreaks of avian influenza in Cambodia between April 2007 and February 2010. The methods used to concentrate H5N1 virus from water samples were based either on agglutination of the virus with chicken red blood cells or on adsorption on glass wool, followed by an elution-concentration step. An elution-concentration method was used for mud specimens. All samples that tested positive by real-time RT-PCRs (qRT-PCRs) targeting the HA5, M and NA1 genes were inoculated into embryonated hen eggs for virus isolation. Of a total of 246 samples, 46 (19%) tested positive for H5N1 by qRT-PCRs. Viral RNA was frequently detected in dust, mud and soil samples from the farms' environment (respectively, 46%, 31% and 15%). Samples collected from ponds gave a lower proportion of positive samples (6%) as compare...Continue Reading

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Citations

Aug 31, 2012·Emerging Infectious Diseases·Ramona A Gutiérrez, Philippe Buchy
Jan 26, 2013·Emerging Infectious Diseases·Srey Viseth HormPhilippe Buchy
Apr 14, 2016·Veterinary Microbiology·Kevin Yana NjaboThomas B Smith
Apr 2, 2013·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Jonathan RunstadlerMandy Keogh
Jul 19, 2016·Influenza and Other Respiratory Viruses·Udayan JosephGavin J D Smith
Jul 12, 2020·Transboundary and Emerging Diseases·Grace HoodLeslie Sims
Feb 1, 2013·Emerging Microbes & Infections·Anneke EngeringJan Slingenbergh
Jan 20, 2018·Emerging Infectious Diseases·Paul F HorwoodPhilippe Dussart
Mar 15, 2019·Emerging Microbes & Infections·Chavely Gwladys MonamelePhilippe Dussart
Apr 10, 2019·Transboundary and Emerging Diseases·Saskia A BergervoetNancy Beerens

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