China urged to tell truth after claims coronavirus originated in Wuhan lab during risky tests on bats

Bungling scientists at the Wuhan Institute of Virology accidentally spread the killer during risky coronavirus tests on bats, US and British intelligence officials fear.

Patient Zero, the first person to contract Covid-19, was an intern there who infected her boyfriend, it was being claimed.

President Donald Trump said the US was trying to establish if coronavirus first crossed to humans during the bat tests.