The origins of COVID-19 remain a mystery as WHO says “Cannot rule out any theory” after an inconclusive study.

WHO begins investigation into COVID-19 02:33. Wuhan, China — The World Health Organization's team of coronavirus experts were released from quarantine to begin their field work in Wuhan, China ...

WUHAN, China — A World Health Organization team is leaving China on Wednesday after gaining some new insights into the origins of the coronavirus pandemic that has now killed more than 2.3 ...

Viscount Ridley, co-author of Viral: the search for the origin of Covid-19, said: “Like all other formal investigations, the ...

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

A Chinese scientist, Huang Yanling, who disappeared after being labeled 'the world's first Covid patient' remains missing, raising suspicions of a state cover-up. Huang was identified as Patient ...

All hypotheses on how the Covid-19 pandemic began remain open, the World Health Organization said, following an inconclusive four-year investigation that was hamstrung by crucial information being ...

The WHO Scientific Advisory Group reported progress in understanding COVID-19's origins but noted that critical information ...

WHO’s Tedros says ‘all hypotheses must remain on the table’ after critical information not provided to investigators.

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

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

All hypotheses on how the Covid-19 pandemic began remain open, the World Health Organization said yesterday, following an ...