Pfizer has now annnounced amid growing fears that its vaccine may be inadequate against new strains of COVID-19 that the vaccine actually appears to be adequate. The AP reports that the reason why tne UK and the African strains were believed to be mutated and more contagious is because of a particular point in the strain.
That point has been identified as N501Y. Researchers note that such is an apparent spike in one of the proteins that coat the virus.