The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding means the virus has again spilled over from birds to cows, and it raises some worrying questions.
Dairy cattle in Nevada have been infected with a new type of bird flu that’s different from the version that has spread in ...
The USDA said four Nevada dairy herds were infected with an H5N1 bird flu strain that has circulated in wild birds, making ...
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