An experimental model to analyse the risk of introduction of a duck-originated H5 low-pathogenic avian influenza virus in poultry through close contact and contaminative transmission

Aquatic wild birds are often carriers of low-pathogenic avian influenza viruses (LPAIVs). If H5 and H7 LPAIVs are transmitted to poultry and have the opportunity to circulate, a highly pathogenic AIV may arise. Contact with aquatic wild birds is one of the most important ways in which these LPAIVs c...

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Veröffentlicht in:	Epidemiology and infection Jg. 142; H. 9; S. 1836 - 1847
Hauptverfasser:	CLAES, G., MARCHÉ, S., DEWULF, J., VAN DEN BERG, T., LAMBRECHT, B.
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Cambridge, UK Cambridge University Press 01.09.2014
Schlagworte:	Animals Aquatic birds Automation Avian influenza virus Biological and medical sciences Chickens Disease transmission Drinking water Drinking Water - virology Ducks Experimental infection Experiments Fundamental and applied biological sciences. Psychology Housing, Animal Infections Influenza Influenza A virus Influenza A virus - genetics Influenza A virus - pathogenicity Influenza in Birds - prevention & control Influenza in Birds - transmission Influenza in Birds - virology Influenza/Respiratory viruses Microbiology Miscellaneous Models, Biological Original Papers Poultry Risk Factors RNA, Viral - isolation & purification Specific Pathogen-Free Organisms Viral vaccines Virology Viruses Water pollution Wild birds Wildfowl Belgium Close contact transmission contaminative transmission interspecies transmission real-time RT–PCR H5 low-pathogenic avian influenza virus Farming animal Poultry Transmission Orthomyxoviridae Zoopathogen Epidemiology Virus Vertebrata Influenzavirus A Avian influenzavirus Duck Models Aves Veterinary
ISSN:	0950-2688, 1469-4409, 1469-4409
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Aquatic wild birds are often carriers of low-pathogenic avian influenza viruses (LPAIVs). If H5 and H7 LPAIVs are transmitted to poultry and have the opportunity to circulate, a highly pathogenic AIV may arise. Contact with aquatic wild birds is one of the most important ways in which these LPAIVs can be introduced into poultry flocks. In this study, the transmissibility of a duck-originated H5 LPAIV between ducks and chickens was analysed in a series of animal experiments, using different transmission routes. Results indicate that the outcome of virus intake by chickens exposed to infectious ducks depends on the way the virus is presented. Faecally contaminated drinking water proved to be the most efficient route by which the virus can be transmitted to chickens. The results from this study also suggest that some duck-originated H5 LPAIVs may be introduced to poultry but do not have the potential to become established in poultry populations.
Bibliographie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-1 ObjectType-Feature-2 content type line 23
ISSN:	0950-2688 1469-4409 1469-4409
DOI:	10.1017/S0950268813002793