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

A Missouri patient who tested positive for the H5N1 virus alerted health officials in August, launching an investigation.

There have been at least 39 human H5N1 cases in the U.S. this year. Fifteen were in California, 10 were in Colorado, nine ...

As of now, 17 states have reported H5N1 bird flu cases in humans, but there is still no evidence for transmission between people and the infections have been mild. Could that change?

"Genetic sequencing of nine of these cases confirms that all are H5N1 viruses from clade 2.3. ... The source of infection for one patient in Missouri has still not been identified.

However, there was some reassuring news from Missouri: No evidence that H5N1 had passed person-to-person. Regarding the household contact of the original hospital patient, the investigation has ...

The operation, dubbed Cold Meat 2, launched last week. It tracked 18,000 head of cattle raised in 100 square miles (260 ...

H5N1 bird flu was detected in a pig in Oregon, marking the first detection of the virus in swine in the country, the U.S. Department of Agriculture (USDA) said Wednesday. The detection was on a small ...

Amid an ongoing outbreak of bird flu in poultry and dairy cows in the United States, a case of H5N1 has now been ...