Britain is on high alert as a surge in human metapneumovirus cases prompts health warnings and calls for Britons to wear ...

Several studies have said the virus originated naturally — but U.S. intelligence changed its assessment over the weekend.

China was forced to put emergency measures in place earlier this month after the virus, later identified as HMPV, started to ...

The UK's health officials have spoken out about the virus formerly dubbed a “mystery” as UK cases rise. Earlier this month, ...

The CIA says lab leak is most likely source of COVID outbreak. But there is no consensus among scientists whether it ...