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

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 common questions about the new variant.

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

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 ...

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.

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

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

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

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

Respiratory syncytial virus (RSV) is a leading cause of acute lower respiratory infections (ALRTIs) in children under five and poses a persistent threat to child health worldwide.