Pfizer's Covid-19 vaccine appears to stop variants found in U.K., South Africa
[Music] you know the vaccines are producing what's called a polyclonal effect as you know it's the full-length spike protein in these vaccines so you're producing antibodies against many regions of that spike protein the mutations are just mutating select regions on the spike protein now what's concerning about the south african variant perhaps the scottish variant as well is that they mutated the region on the spike protein where we developed some of our best antibodies so they mutated the rece...
