Shiliaev N, Lukash T, Palchevska O, Crossman DK, et al. Natural isolate and recombinant SARS-CoV-2 rapidly evolve in vitro to higher infectivity through more efficient binding to heparan sulfate and reduced S1/S2 cleavage. J Virol 2021 Aug 18:JVI0135721. doi: 10.1128/JVI.01357.
PMID: 34406867