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

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

"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 ...

All of the cases were farm workers who had known contact with infected animals, except for one person in Missouri. The people ...

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