In dribs and drabs, USDA reports suggest containing bird flu outbreak in dairy cows will be challenging
The U.S. Department of Agriculture released two reports Thursday that lay out what has been learned about how H5N1 bird flu is moving among dairy cow herds in the United States.
The reports do not shed much new light on the situation. Instead, they sum up what is known: that the outbreak was probably the result of a single “spillover” of the virus from wild birds into a dairy herd, likely late last year, and that movement of cows, farmworkers, and shared equipment appears to be responsible for the spread.
