A pharmacist prepares a dose of the Moderna Covid-19 vaccine in Washington, DC, on April 27, 2021. Bloomberg
A pharmacist prepares a dose of the Moderna Covid-19 vaccine in Washington, DC, on April 27, 2021. Bloomberg
Moderna Covid-19 booster shot bolsters antibodies against variant strains
Early results from trial show Moderna's booster shot helps against variants of concern found in Brazil and South Africa
