The researchers who unexpectedly stumbled over the genetic data say that it supports -- but cannot definitively prove -- the theory that the virus originated in animals, possibly first jumping over to humans at the market in the city of Wuhan.
The issue has proved divisive for the scientific community and even different US government agencies, with some maintaining that the virus likely leaked from a Wuhan lab -- a claim that China has angrily denied.
Maria Van Kerkhove, the World Health Organization's technical lead on Covid... Читать дальше...