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 ...

WHO director Dr Tedros Adhanom Ghebreyesus says all hypotheses are on the table, as the organisation works to reinforce ...

The findings concern two viruses closely related to Nipah and Hendra, which can cause brain inflammation and respiratory ...

Could the COVID-19 surge in China unleash a new coronavirus mutant on the world? Scientists don't know but worry that might happen. It could be similar to Omicron variants circulating there now.

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

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.

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

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

Cases of human metapneumovirus, or HMPV, a contagious virus that can lead to respiratory disease, is reportedly spiking in northern China. Infectious disease experts say risk to the U.S. is low.

An expert group charged by the World Health Organization to investigate the origins of the COVID-19 pandemic has found no ...

Experts were unable to get the data they needed from China to evaluate whether Covid was the result of a lab accident.