How H5N1 Bird Flu Hid Unrecognized for Weeks in Dairy Cattle
June 19, 2026
June 19, 2026
PITTSBURGH, Pennsylvania, June 19 -- The University of Pittsburgh Medical Center issued the following news release:
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How H5N1 Bird Flu Hid Unrecognized for Weeks in Dairy Cattle
When H5N1 bird flu first began infecting U.S. cattle in early 2024, diagnosis was elusive, because in cows, the disease looked completely different. Instead of affecting the lungs, as H5N1 does in other mammalian species, it caused severe infection in the cows' udders, lar . . .
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How H5N1 Bird Flu Hid Unrecognized for Weeks in Dairy Cattle
When H5N1 bird flu first began infecting U.S. cattle in early 2024, diagnosis was elusive, because in cows, the disease looked completely different. Instead of affecting the lungs, as H5N1 does in other mammalian species, it caused severe infection in the cows' udders, lar . . .