SHOCKING! Wuhan researcher exposes China, claims 'Covid-19 was engineered as bioweapon'
World | June 28, 2023 17:51 ISTIn the 26-minute interview, Chao Shao shared an anecdote about how another Wuhan Institute of Virology researcher, Shan Chao, admitted that his superior gave him four coronavirus strains and asked him to test them to determine which one was best able to infect as many species as possible.