Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...

A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it continues to spread.

A new strain of highly pathogenic bird flu (H5N9), which has never been seen in the United States before, was recently discovered on a duck farm in ...

Experts stressed that the new strain did not itself appear to be an immediate human threat. But the rise of a new strain is troubling and points to the risk of a viral phenomenon known as ...

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

The finding at a California duck farm is raising alarms among public health experts that bird flu could further mutate into ...

A newly identified strain of bird flu, H5N9, discovered at a California duck farm, has prompted concerns about the possibility of a larger outbreak, The Washington Post reported Jan. 29. Health ...

The virus was reported in a commercial flock of ducks. It’s the first time the subtype has been detected in the United States ...

A new strain of bird flu has been detected on a duck farm in California. The World Organisation for Animal Health reported the outbreak of the new strain, H5N9, earlier this week.

Scientists are particularly concerned about a process called “reassortment,” The Washington Post reported, where different flu strains mix in infected animals, creating new versions of the virus.