Bird flu has been confirmed in dairy cattle herds in nine states, has been found in milk and has prompted the slaughter of millions of chickens and turkeys. But finding it in beef is a new ...

By Emily Anthes and Dani Blum Beef tissue from a sick dairy cow has tested positive for the bird ... flu by eating contaminated food also remains an open question. A study published on Friday ...

The discovery of bird flu virus particles in the muscles ... the highly sensitive PCR tests that the USDA uses to search for H5N1 in beef has only found viral particles in the muscle of one ...

Bird flu was found in only one of those cows. The agency said last month that it would test ground beef for bird flu at retail stores, but it has yet to find any sign of the virus. Even if bird ...

Bird flu has been confirmed in dairy cattle herds in nine states, has been found in milk and has prompted the slaughter of millions of chickens and turkeys. But finding it in beef is a new ...

Bird flu was found in only one of those cows. The agency said last month that it would test ground beef for bird flu at retail stores, but it has yet to find any sign of the virus. Even if bird flu ...