LOS ANGELES - Moderna announced on Wednesday that data from an ongoing trial of its COVID-19 vaccine booster found it was effective against variants of the virus, including the B.1.351 variants first identified in South Africa and the P.1 variants first identified in Brazil.Moderna says a single dose of its vaccine given as a booster to previously fully vaccinated individuals "increased neutralizing antibody" responses against both variants.
The data is from an ongoing trial analyzing various strategies for vaccine boosters that would be used to neutralize virus titers or concentrations of the coronavirus that can still infect cells.