Dr Filippa Lentzos, a reader in science and international security at King’s College London, said the origin question remained open. “It could well have resulted from a natural spillover, but it could equally be the result of research-related activity, such as a lab leak or fieldwork incident. There simply is no hard evidence either way, just historical precedent and circumstantial evidence,” she said. “While I believe the ‘lab leak’ theory a real possibility, I should point out that the DoE assessment has ‘low confidence’ in that assessment and their assessment did not change the minds of any of the other agencies.”

Source: How seriously should we take the US DoE’s Covid lab leak theory? | Coronavirus | The Guardian