U.S. scientists have tested everything from milk to sour cream and ground beef for bird flu amid an outbreak among dairy cattle.

More dairy cows to be tested for bird flu after findings in grocery store milk 02:45. Tests of ground beef purchased at retail stores have been negative for bird flu so far, the U

The outbreak of H5N1 bird flu virus has spread to dairy cows for the first time in the United States, raising concerns about it spreading to humans through the nation's milk supply. Since 2022, bird flu in the United States has infected over 90 million chickens,