Moderna developing vaccine “booster shot” against 501YV2 variant

America, Coronavirus, Health, Moderna, Mutation, Treatment, USA, Vaccine

Moderna said its Covid-19 vaccine appeared to protect against emerging variants of the coronavirus in laboratory tests, but as a precaution it would test whether a booster shot improves immune responses and develop a new vaccine targeting the strain first identified in South Africa.



** This post was originally published on January 25, 2021 **