Why is the team in China?
Researchers around the world are eager for access to samples taken from the Huanan Seafood Market, which had an early outbreak, and Wuhan hospital records.
The team may visit the market itself as well as the locations of other early cases.
Ng Han Guan/AP
Workers wave to the team of experts from the World Health Organisation who ended their quarantine and left the quarantine hotel in a bus in Wuhan in central China's Hubei province on January 28, 2021.
It could also go to a laboratory at the Wuhan Institute of Virology that was built after the 2003 SARS pandemic and maintains an extensive archive of genetic sequences of bat coronaviruses. US officials in the previous Trump administration suggested without offering evidence that the virus could have escaped from the institute.