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.

The situation is "horrifying," said Jennifer Nuzzo, director of the Pandemic Center at Brown University ... including one ...

H5N1 avian flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in hogs in the ...

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

but we also know that the strain of influenza virus that entered pigs in 1918 then circulated in them for over 90 years ...

Amid an ongoing outbreak of bird flu in American dairy herds and poultry flocks, Canadian officials have announced ...