US rules out COVID origin as bioweapon

The US published a supplemented version of its intelligence report on the origin of Sars-CoV-2 at the weekend. In it, the authors cite the possibility of a laboratory accident in the city of Wuhan as a possible scenario for the release of the pathogen. At the same time, they rule out the possibility that the virus was deliberately developed there as a bioweapon. As a plausible alternative, they cite a jump from animal to human in nature.