Posted in NEWS Moderna says its COVID-19 vaccine protects against new UK and South African variants, but plans to test new booster shot January 25, 2021 Moderna says studies show its vaccine is effective against emerging strains of the coronavirus but plans to test a booster to its two-dose regimen. http://rssfeeds.usatoday.com/~/642626440/0/usatoday-newstopstories~Moderna-says-its-COVID-vaccine-protects-against-new-UK-and-South-African-variants-but-plans-to-test-new-booster-shot/