(FILES) In this file photo a man receives a dose of the Moderna coronavirus disease (COVID-19) vaccine at a vaccination site at South Bronx Educational Campus, in the Bronx New York on January 10, 2021. - US biotechnology firm Moderna on January 25, 2021 said lab studies showed its Covid-19 vaccine would remain protective against variants of the coronavirus first identified in the United Kingdom and South Africa. "The study showed no significant impact" on the level of neutralizing antibodies elicited against the UK variant, B.1.1.7. (Photo by Kena Betancur / AFP)