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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Vydané v:Epidemiology and infection Ročník 142; číslo 9; s. 1836 - 1847
Hlavní autori: CLAES, G., MARCHÉ, S., DEWULF, J., VAN DEN BERG, T., LAMBRECHT, B.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Cambridge, UK Cambridge University Press 01.09.2014
Predmet:
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
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Popis
Shrnutí: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.
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ISSN:0950-2688
1469-4409
1469-4409
DOI:10.1017/S0950268813002793