The Food and Drug Administration is investigating the spread of "a highly contagious and often deadly" bird flu to dairy cows in Texas, Kansas and Michigan, the agency said on Friday.
The big picture: The bird flu was detected in unpasteurized milk samples and swabs from two dairy herds in Texas and Kansas and one in Michigan, but federal authorities said in an online Q&A there is "no concern" about the safety of the U.S. milk supply.
