In light of the ongoing global spread of the H5N1 avian influenza, U.S. public health experts are reassured that current ...

Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

The Centers for Disease Control and Prevention (CDC) has identified mutations in the H5N1 bird flu virus that may increase ...

When, where and how the H5N1 bird flu virus may evolve and its capacity to spark a pandemic is hard to predict — in part, ...

The Los Angeles County Department of Public Health has confirmed a human case of H5 bird flu in an adult who was exposed to ...

Health officials with the CDC reiterated Wednesday that the H5N1 flu still mainly affects animals. “No person-to-person spread of H5 bird flu has been detected,” the agency said in a news release.

Bird flu, a.k.a. H5N1, has dominated headlines in the U.S. for months. But while this illness is known worldwide for having a high mortality rate, the vast majority of infections in America have ...

The virus H5N1 is a subtype of avian ... to spread between people, and the infection could become more dangerous if it starts to mix with other seasonal flu viruses. However, the CDC says that ...