In October 2005, the second Swiss national avian influenza monitoring in wild waterfowl and commercial poultry with free range management started. Cloacal swabs were examined by real-time reverse transcription-polymerase chain reaction for both M gene of influenza A virus and H5 subtype. The monitoring (more than 2000 samples tested) documented the introduction of H5N1 in Swiss wild waterfowl in mid-February 2006. Until the end of March, 29 water bird carcasses were found H5 positive. In the same period, domestic poultry flocks with a permit of free-range management were kept under surveillance, with negative results.
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1 March 2007
The 2005/2006 Avian Influenza Monitoring of Wild Birds and Commercial Poultry in Switzerland
Silvia Dalessi,
Richard Hoop,
Monika Engels
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Avian Diseases
Vol. 51 • No. s1
March 2007
Vol. 51 • No. s1
March 2007
avian influenza
H5N1
monitoring
Switzerland
wild bird