CNN CNN Newsroom With Jim Acosta November 26, 2021 22:10:00
The past those kind of vaccine escape variants have not really translated into major global path os gens. we have seen this before, but with the beta variant, with the lambda variant, those never really took off. so theres nothing intrinsic in the spike protein that would account for global spread. the two worst ones, the alpha, that arose out of theuu uk, and the delta variant that rose out of an unvaccinated population in india, was because of amino acid substitution that caused it to be a muc...
Source: archive.org