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 ...

Scientists in China have discovered a host of never-before-seen viruses in bats that live near humans. These viruses include ...

Twenty new viruses have been discovered within bats in China, "raising urgent concerns" that these diseases might spill over ...

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

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

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

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

Americans became less favorable toward Asians as COVID-19 spread and news coverage intensified, according to a new study. The ...