Infectious Diseases 2008

Infectious Diseases 2008

USA: Low pathogenic avian influenza in a breeder flock

USA - LPAI 3 June, 2008 Tyson Foods is working cooperatively with the USDA and the Arkansas Livestock and Poultry Commission to manage a flock of breeder hens that has been exposed to a low pathogenic strain of avian influenza (LPAI).  Preliminary tests on the flock indicate the presence of antibodies for H7N3 avian influenza, however, there is no indication the birds currently have the virus. 
The 15,000 chickens involved show no signs of illness. 
The affected birds are at the farm of a contract poultry producer in northwest Arkansas.  The discovery came as part of routine, pre-slaughter surveillance.  The strain involved is low pathogenic H7N3. 
The flock is being depopulated as a precautionary measure and will not enter the human food chain.