There have been four flu pandemics since the start of the 20th century. What we’ve learned—and why we still can’t predict the ...

While HPAI can potentially infect humans, the CDC says the current outbreak is primarily an animal health issue.

Health concerns are growing amid a recent uptick in cases of human metapneumovirus (HMPV), bird flu, and norovirus.

The first U.S. bird flu death — a person in Louisiana who had been hospitalized with severe respiratory symptoms — has been reported. Louisiana health officials announced the death on ...

The Louisiana patient who contracted what officials said was the nation’s first “severe” case of avian influenza has died, ...