USDA orders H5N1 testing of some dairy cows to limit spread of bird flu
The U.S. Department of Agriculture moved to try to limit spread of the H5N1 bird flu virus among dairy cattle on Wednesday, issuing a federal order that will require an animal to test negative for the virus before it can be moved across state lines. It also requires laboratories and state veterinarians to report to the USDA any animals that have tested positive for H5N1 or any other influenza A virus.
In addition, farms that move cattle across state lines and have animals that test positive for H5N1 or any influenza A virus will be required to open their books to investigators, so they can trace movement of cattle from infected herds.
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