Paper: NIH Funded Wuhan to Study Mutating SARS-CoV
ncbi.nlm.nih.gov
ncbi.nlm.nih.gov
(related link: https://theintercept.com/2021/09/06/new-details-emerge-about... )
Let me summarize the study: “We deleted a protein from a different virus and made it less dangerous, thus showing that the protein is important.”