Verkkothe energy department has concluded, with “low confidence,” that an accidental laboratory leak in china was most likely the origin, but politics are. Verkko“this is disturbing. ” nature looks at the key arguments that support a lab leak, and the extent to which research has answers. There’s not yet any. Verkkohow a veteran virologist found fresh evidence to back up the theory that covid jumped from animals to humans in a notorious chinese market—rather.