![Tedros Adhanom Ghebreyesus, director general of the World Health Organization (WHO), speaks during a news conference on the COVID-19 coronavirus outbreak in Geneva, in March 2020.](https://i0.wp.com/media.npr.org/assets/img/2021/10/13/gettyimages-1204797411_wide-5cc6b761d109869321fd178472a2a4f5b9453a37.jpg?w=705&ssl=1)
The World Health Organization advisory group will include scientists from the U.S., China and two dozen other countries and will study various hypotheses, including the possibility of a lab leak.
(Image credit: Stefan Wermuth/Bloomberg via Getty Images)
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