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 ...

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 ...

Sharp throat pain that feels like swallowing razor blades—this symptom is particularly noticeable in infections with the new ...

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

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

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

The World Health Organization said on Friday that efforts to determine the origins of SARS-CoV-2, the virus that caused the ...