Health officials in the United States have confirmed that a man in Washington state has died after contracting a strain of bird flu that has never before been identified in humans. The man, who was ...

Bird influenzas are known not only for their danger and severity, but also for their ability to jump to other creatures, including humans. However, recently the ongoing H5N1 bird flu was detected in ...

Bird flu cases are increasing, and a new review suggests the virus might spread between people without causing symptoms. But with limited surveillance and major gaps in data and reporting, the scope ...

A Washington resident died of complications from an infection with a bird flu strain never before reported in humans, the state Department of Health said on Friday. The patient was an older adult with ...