More than 100 federal scientists who track bird flu, including vaccine and food safety experts, have been laid off. This comes as the deadly pathogen rips through dairy herds and poultry flocks.

What to know about bird flu amid dozens of human cases in U.S. 02:27 Health officials are alarmed by more than 50 confirmed human cases of a bird flu variant across seven states this year, with a ...

Bird flu has spread widely in poultry, causing egg shortages. Virus spillover has occurred in various mammal species, including humans. H5N1 does not currently have the ability to spread human to ...