and no respiratory symptoms. Nearly all the cases have been linked to contact with cattle or domestic or wild birds. The CDC says there have been no cases of human-to-human transmission so far ...
CBS News on MSN10d
Cows infected by lethal bird flu strain never before seen in the animal showing respiratory symptoms, Nevada saysAt least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...
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