WHO chief says discussed collaboration on Covid origins with Chinese premier
China has consistently denied allegations that the virus was leaked from a specialist laboratory in the city of Wuhan, where Covid-19 was first identified at the end of 2019.
US spy agencies say origins of Covid-19 may never be known
The Office of the US Director of National Intelligence says that a natural origin and a lab leak are both plausible hypotheses for how SARS-COV-2 first infected humans although it dismisses suggestions that it originated as a bioweapon.
