“ in the autumn of 2019, Matthew Pottinger, a deputy national security adviser to former President Donald Trump, has alleged on CBS News’ “Face the Nation”.

He said “the ledger on the side of the explanation that said [the outbreak] resulted from some kind of human error far outweighs the side of the scale that says this was some natural outbreak”, adding that the experiments could have gone all the way back to at least 2017.”