The World Health Organisation says the United States government has not given any evidence to support Trump administration officials’ “speculative” claim that Covid-19 originated in a Wuhan lab, as China dismissed the claim as “insane”.
Donald Trump has repeatedly claimed to have proof the virus originated in a laboratory in Wuhan – whereas scientists believe it jumped from animals to humans at a wet market in the city last year.
The US secretary of state, Mike Pompeo, said on Sunday that the US had “enormous evidence” to back the theory. But the administration had not produced it publicly or provided it to the WHO, said its emergencies director, Dr Michael Ryan. “So from our perspective, this remains speculative.
“Like any evidence-based organisation, we would be very willing to