La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Contacts between wild birds and domestic poultry - a serious factor in transmission of avian influenza? (2011)
Auteurs :	Alexander Roemer, Auteur ; Wolfgang Fiedler, Auteur
Type de document :	Article
Dans :	Vogelwarte (49(3) AUG 2011)
Article en page(s) :	149-161
Langues:	Allemand
Résumé :	Waterbirds are seen to be the main reservoir for many subtypes of low pathogenic avian influenza A virus. There is also evidence for a potential spread of high pathogenic subtypes through waterbirds. Transmission of avian influenza virus from wild birds into poultry and vice versa therefore is seen as a risk factor for the spread of the disease and a prohibition of keeping poultry outdoors is among the standard repertoire in veterinary disease defense.Data about the extent of contacts between wild birds and poultry until now are only available through single anecdotes. Within the framework of project Constanze" (exploration of the bird flu risk at the example of Lake Constance) between October 2007 and January 2008 Swiss poultry farms with open air enclosures were searched for contacts between poultry and wild birds. It was aimed to estimate the extent of these contacts in the light of a potential transmission risk of influenza virus.Observations were made on

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