Ten bird flu viral particles found to cause infection in US cows
19 Jun 2026

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.

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.