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 ...

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 ...

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

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

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

A painful sore throat, often referred to as "razor blade throat", is just one of the symptoms of a new COVID-19 variant. This ...

A new COVID variant called NB.1.8.1, aka Nimbus, is spreading in the U.S. and causing an incredibly painful sore throat, ...

A newer COVID-19 variant may be causing a severe sore throat in those who contract the infections. Here's what to know about ...

The zoonotic spillover theory suggests that SARS-CoV-2, a virus that infects primarily animals, was passed on to humans at a wet market in Wuhan, China. The lab theory speculates that the virus leaked ...

Variant NB.1.8.1 accounted for 0% of U.S. cases in April. By mid-June, it was estimated to be the cause of around 37% of ...

An expert group charged by the World Health Organization to investigate how the covid-19 pandemic started released its final ...