Pfizer, BioNTech say vaccine likely as effective against COVID-19 variant first found in UK
A study conducted by Pfizer and BioNTech found that their coronavirus vaccine is likely just as effective against the strain first found in the U.K. that is estimated to be more contagious.
The companies published the study on preprint server bioRxiv, saying that the Pfizer-BioNTech vaccine is expected to be effective against any mutations from the coronavirus variant, called B.1.1.7., that first emerged in the U.K. in September.
The study, which has not yet been peer-reviewed, concluded that there were “no biologically significant difference in neutralization activity” between trials involving the original COVID-19 strain and B.1.1.7.
The research on the Pfizer-BioNTech vaccine found that antibodies in the blood of 16 participants, who had previously received the vaccine, neutralized all mutations from B.1.1.7. Eight of the participants were between 18 and 55, and the other eight were between 56 and 85.