Scotland's NHS is coping despite a significant upsurge in flu cases, First Minister John Swinney has said. The latest figures ...

Here’s what to know about the United States’ first confirmed severe case of H5N1 avian influenza—and how to protect yourself.

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there ...

Pet owners are reminded that prevention is the best strategy for protecting their animal companions from the disease.

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the ...

A surge in flu cases across Scotland has placed health services in the country under "acute pressure", Public Health Scotland ...

Typically, flu activity starts to pick up around Halloween and peaks in February. This year, however, the virus got off to a ...

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

First come the horseshoe crabs. Hoisting their round, tank-like shells, they trundle out of the Delaware Bay under the first ...