bioRxiv 2021.01.21

Two groups of researchers tested the B.1.1.7 variant of SARS-CoV-2 “against blood taken from people who had received the full two-course dose of either the Moderna or the Pfizer vaccine,” and found that the variant did “evade some of the immunity induced by vaccination,” but the vaccine still offered protection against both variants. In one study published in bioRxiv, researchers at Rockefeller University tested the B.1.1.7 variant, also known as the UK variant, against the blood of people who had received vaccinations, and found “different mutations in the viruses did allow some escape from some types of antibodies, but the bodies of the volunteers threw an army of different types of antibodies at the viruses.” In the other study (PDF) published in bioRxiv, another group of researchers tested that vaccine against the B.1.1.7 variant, and found “no biologically significant difference in neutralization activity.”