Most of those infections have been seen in wild bird populations, with two known instances of backyard poultry flocks ...

A federal judge ruled on Thursday that the Trump administration must immediately rehire tens of thousands of probationary ...

Few objects symbolize the pandemic as well as the N95. Impossible to find until they were ubiquitous, the double-strapped ...

Prior exposures to specific types of seasonal influenza viruses promote cross-reactive immunity against the H5N1 avian ...