Highly pathogenic avian influenza now in 28 dairy herds in 8 states By Rachel Wagoner, April 16, 2024 SALEM, Ohio — Highly pathogenic avian influenza has now been detected in dairy cows in eight states, prompting some states to restrict cattle movements. The U.S. Department of Agriculture confirmed on April 9 that dairy herds in North read more Article from Farm and Dairy: Highly pathogenic avian influenza now in 28 dairy herds in 8 states