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 ...

Bird flu has been spreading in dairy cows in the US—and the scale is likely to be far worse than it looks. In addition, 14 ...

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

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

Political apathy and selfishness in the face of outbreaks of bird flu and mpox show that the world has not learned from the ...

Kleptoparasitism, in which a bird harasses another to steal its food, might introduce avian flu to the continent, currently ...

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

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

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 ...

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