A spillover from wild birds to dairy cattle has made Arizona the 17th U.S. state in which H5N1 has been detected in dairy herds; the virus has been found in nearly 970 herds nationwide since March 2024.
https://www.statnews.com/2025/02/14/arizona-bird-flu-h5n1-dairy-cows-spillover/
https://www.statnews.com/2025/02/14/arizona-bird-flu-h5n1-dairy-cows-spillover/
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