Scientists Find Mechanism Behind Bird Flu Infections in Dairy Cattle

Scientists find mechanism behind bird flu infections 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.

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, largely sparing the lungs.

Ten bird flu viral particles found to cause infection in US cows

Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in US dairy cattle can cause infection in cows, a new study shows.