Jan B. Hommel stated that virologists Shi Zhengli, Ralph Baric, and Vincent Munster had conducted research on adding a furin cleavage site to a sarbecovirus. According to him, Munster, as far as known, only worked with pseudoviruses, while Shi and Baric collaborated on DEFUSE, a project by Peter Daszak for DARPA, since 2017. Hommel pointed out that a pandemic broke out in Wuhan in early 2020 with a sarbecovirus with such a cleavage site and called that a striking coincidence. He wrote that Marion Koopmans did not see a link between those matters and told that Shi had said during Koopmans' visit to Wuhan that he had nothing to do with the outbreak and had only been at the Huanan market. Hommel also criticized Maarten Keulemans, who according to him continued to defend Koopmans. #OriginOfCovid #COVID19 #Virologie #Pandemie (translated)