In a case that continues to confound scientists, U.S. health officials said Thursday that they still don't know how a Missouri patient caught the bird flu and that the case may just be a rare anomaly.

In new flu report, the CDC said a close contact of the Missouri bird flu patient was sick around the same time but was not ...

MISSOURI, USA — Missouri residents will likely never know the name of the first state resident ever to test positive for bird flu, but the now year-old case is still causing concern throughout the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — Health officials on Thursday ...

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally caused isolated human cases that have quite often been fatal. But last year ...

There are now 17 suspected cases of swine flu in Illinois, according to the state's health department. That's up from nine reported yesterday. All of the cases are from the Chicago area. The Illinois ...

In a bid to get ahead of the next global flu pandemic, scientists have turned to a surprising tool: bird poop. In remote parts of the Indian Ocean and Oceania — regions often neglected during global ...

For months, bird flu was seemingly everywhere in the U.S.: news headlines reported the highly pathogenic H5N1 avian influenza virus was rapidly sweeping through hundreds of herds of dairy cattle and ...