study posted late Thursday on an online site for researchers.The study is preliminary and has not yet been reviewed by experts, a key step for medical research.But “it was a very reassuring finding that at least this mutation, which was one of the ones people are most concerned about, does not seem to be a problem” for the vaccine, said Pfizer chief scientific officer Dr.
Philip Dormitzer.Viruses constantly undergo minor changes as they spread from person to person. Scientists have used these slight modifications to track how the coronavirus has moved around the globe since it was first detected in China about a year ago.British scientists have said the variant found in the U.K. – which has become the dominant type in parts of England --.