A USDA spokesperson clarified that the infection originated from wild birds, not from a poultry or dairy farm ... USDA's recent expansion of bird flu surveillance to include bulk milk testing ...
The U.S. Department of Agriculture said this week that a pig on a backyard farm in Oregon was the first confirmed case of H5N1 bird flu in swine in the country ...
Wild bird migration has carried bird flu to poultry flocks and cattle herds. The case was one factor that drove the USDA to broaden its bird flu surveillance to include nationwide bulk milk testing ..