H5N1 bird flu has infected over 1,009 cattle across 17 U.S. states, affected poultry in New York and New Mexico, and caused one human death in Louisiana.

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Bird flu infections have been rare among people, but the pathogen is evolving, which has scientists worried about a possible ...

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.