SARS-CoV-2 virus, which was first reported in the Chinese city, of Wuhan in 2019, has killed at least 6.3 million worldwide.
While a lot of western countries have claimed that China should be blamed behind the orgin of this deadly virus, the WHO's team underplayed a lab-leak theory that put Chinese officials on the defensive.
In March 2021, WHO released a report about Covid-19's origins. The report concluded that the disease most likely jumped into humans from bats and that there was no evidence to suggest there was a connection to a laboratory.
However, the UN agency has now taken a surprising U-turn by saying that a deeper probe is required into whether a lab accident may be to blame for coronavirus.