Bird flu has infected three more people from Washington state after they were exposed to poultry that tested positive for the ...

A total of 39 people have tested positive in the US this year, including nine from Washington, as the virus has infected ...

As bird flu infections continue to rise among livestock and humans in the United States, surveillance is ramping up in Canada ...

The Missouri case has been the most perplexing ... the first — and only — known U.S. case of a person who contracted the avian influenza strain known as H5N1 without working on a farm.

The CDC confirmed that the Missouri patient had avian influenza A(H5N1) based on blood test results. Serology tests on close contacts did not indicate further human transmission. A household ...

A Missouri bird flu case first reported by the CDC in September has drawn national attention. The CDC released findings ...

Health officials said Thursday that there's no evidence bird flu is spreading between people after investigating a mysterious ...

federal health officials on Thursday offered some relatively good news about Missouri: The wily avian influenza virus does not appear to have spread from the state's sole human case, which ...

Federal health officials announced Thursday that a Missouri resident infected with bird flu did not spread the virus to others, alleviating concerns about potential human-to-human transmission during ...

FILE - This 2005 electron microscope image shows an avian influenza A H5N1 virion ... after investigating a mysterious infection in Missouri. The illness reported last month was different ...