The convergence of multiple flu strains in one animal can allow new virus strains to form—just as they did in past pandemics.

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

With cold and flu season approaching, it’s worth knowing about another virus out there—albeit extremely rare: bird flu. Like ...

Mysterious US bird flu case in person without any known contact with an infected animal raises spectre of human-to-human ...

Genetic analysis of a bird flu virus detected in a person in Missouri who didn’t previously have contact with animals offers ...

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including ...

A close contact of someone with bird flu became ill on the same day, the C.D.C. reported. But the second person was not ...

This year in the United States, 14 people have tested positive for avian influenza, or bird flu. Nine of those became ...

A patient in Missouri who was hospitalized after an infection with bird flu had the H5N1 strain of the virus, the US Centers ...

The Centers for Disease Control and Prevention has picked five lab partners to develop a test for avian influenza A (H5N1) — ...

A close contact of a Missouri resident identified as having a human case of the H5N1 avian flu also became sick around the ...