Doctors are advising Alabama residents to take part in "Flu Shot Friday" Nov. 15. The Medical Association of the State of ...

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.

Authorities believe more Australian species than initially thought may be vulnerable to a deadly strain of the bird flu. Reports reveal preparations for H5N1's likely arrival are increasing.