Since 2021, experts have seen bird flu — also called H5N1 influenza or highly pathogenic avian influenza (HPAI) — spreading "fairly quickly" across the wild and domestic bird populations and, now, ...

The highly pathogenic H5N1 virus was devastating a flock of chickens on a highly secure farm, home of a breeding program that produced hybrid birds with specially colored feathers and eggs.

Holstein calf feeds from a bottle of colostrum milk. UC Davis researchers have found that acidification of waste milk can kill H5N1, the virus that causes bird flu. (Richard Van Vleck Pereira / UC ...