Nuzzo said there are other hypotheses — which she stressed are just hypotheses — including one that posits people who were ...

Canadian officials have announced that a teenager in British Columbia has been hospitalized in critical condition with what is believed to be bird flu.

Another cause for concern: flu season is underway in the U.S., and as seasonal influenza virus goes around, “humans, ...

A Canadian teen who is in critical condition after contracting H5N1 bird flu was infected with a version of the virus that is different from the one circulating in U.S. cattle.

A year after an outbreak of H5N1 killed thousands of elephant seals, only about a third of the seals normally expected here ...

Swine can act as so-called “mixing vessels” for human and bird flus, giving avian viruses an opportunity to adapt for spreading in people.

A teenager has been hospitalised with bird flu in Canada, in the first suspected case to be found in the country.Officials ...

Researchers have identified new roles for a protein long known to protect against severe flu infection—among them, raising ...

when it started a swine flu pandemic. That pandemic wasn’t as deadly as scientists initially feared, thanks to changes in the virus and our immunity. People and pigs seem to exchange viruses ...