Bird flu virus detected in beef from an ill dairy cow, but USDA says meat remains safe

Bird flu has been detected in beef for the first time, the U.S. Department of Agriculture announced Friday, but officials said the meat from a single sickened dairy cow was not allowed to enter the nation's food supply and beef remains safe to eat.

The USDA said the virus was found as part of testing of 96 dairy cows that were diverted from the supply because federal inspectors noticed signs of illness during routine inspections of carcasses at meat processing plants. Bird flu was found in only one of those cows.

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 development for the outbreak, which began in 2022.

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.