Scientists have warned H5N1 bird flu could make a dangerous leap to humans, triggering a global health crisis.

"This type of prevention can be very useful in controlling infection outbreaks and containing the bird flu pandemic," said an ...

H5N1 bird flu has infected growing numbers of people worldwide in recent years, but this week saw something new: the first recorded human case of an H5N5 avian influenza virus. What is this virus and ...

The latest incident comes after Hong Kong confirmed an elderly man was diagnosed with the disease earlier this week. Chinese authorities have confirmed a second case of human bird flu infection this ...