A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers ...

An expert group from the World Health Organization failed to find a definitive answer to the COVID-19 pandemic’s origins in ...

New WHO report suggests COVID-19 originated from animal-to-human transmission, though Director-General Tedros maintains all ...

A total of 22 viruses were found after researchers looked at the insides of bats' kidneys in the Yunnan province, raising ...

New viruses that are genetically similar to known fatal viruses have been discovered near food sources in a concerning new ...

"Until further requests for information are met, or more scientific data becomes available, the origins of SARS-CoV-2 and how ...

First things first: unlike Covid-19, what is happening in China is not a new virus, it is human metapneumovirus (HMPV), an “old” virus that was discovered in the Netherlands in 2001.

Medical experts have sounded the alarm after 20 new bat viruses were identified in China, urging Australians to remain ...

Scientists have discovered 20 new viruses in bats in Yunnan, China. In a world still recovering from COVID-19, findings like ...

The World Health Organization’s expert group says the origin of COVID-19 remains inconclusive, though most evidence still ...

The WHO Scientific Advisory Group reported progress in understanding COVID-19's origins but noted that critical information ...