Thus far, the outbreak is growing slowly, says Yale SOM’s Dr. Howard Forman. But a lack of coordination and testing continues ...

The patient reported no contact with animals, leaving experts wondering how they contracted the flu — and whether the virus ...

One person is now confirmed to have contracted a case of the avian flu virus, or H5N1, in Missouri, the U.S. Centers for ...

For the past several years, millions of birds around the world have been killed or culled because of a highly pathogenic form ...

Missouri reported its first human case of the current U.S. outbreak. All other 14 cases nationwide have been livestock ...

Public health officials are still trying to determine how a Missouri resident contracted bird flu without having any contact ...

Until recently, every human case of avian flu this year involved people who came in contact with infected poultry or cows.

Health officials on Thursday said they don’t know how a Missouri person caught bird flu but believe it may be a rare instance ...

Missouri confirms its first human case of H5N1 avian flu and urges bird handlers to follow safety precautions, including ...

Less than a week after the Centers for Disease Control and Prevention (CDC) confirmed the first human case of avian influenza ...

That  human case of A(H5) avian flu in Missouri that had no known contact with poultry or other animals has been confirmed by the U.S. Centers for Disease ...

A week after an unusual human case of H5 avian influenza was reported in Missouri, many questions remain. The latest on what's known -- and not known -- about the case, and why scientists are worried.