U.S. orders cow testing for bird flu after grocery milk tests positive
CBSN
The Agriculture Department is ordering the dairy industry to test milk-producing cows for infections from highly pathogenic avian influenza, or HPAI H5N1, before they're moved between states, federal officials announced Wednesday.
USDA's move to ramp up testing requirements for HPAI H5N1 comes after the Food and Drug Administration disclosed Tuesday that samples of pasteurized milk that had been sold on grocery store shelves had tested positive for the virus, prompting further research to verify if the positive test was caused by lingering dead "virus particles" or live infectious virus.
It also comes after federal authorities say they have now spotted some "isolated" but worrying changes to the virus in cows, which are believed by U.S. officials to have contracted the virus from wild birds.
