Deconstructing covid: getting to the source of the virus

MUTANT VIRUSES SMOKING GUN: "We will do this by sequencing the spike (or other receptor binding/fusion) protein genes from all our bat-CoVs, creating mutants to identify how significantly each would need to evolve to use ACE2, CD26/DPP4 (MERS-CoV receptor) or other potential CoV… https://t.co/gS4XLSghjV

— Tom Fitton (@TomFitton) May 22, 2023