HPAI H5N1 strain affects dairy cattle in US, impacting 14 states and milk production.

Highly pathogenic avian influenza (HPAI) has recently affected dairy cattle in the U.S., raising concerns as the H5N1 strain spreads among herds. Originating in Texas in February 2023, it has impacted over 319 herds across 14 states, causing a 10-11% drop in milk production. Despite safety assurances from the FDA and USDA regarding milk supplies, experts stress the need for improved communication and vaccine development to combat future outbreaks.