"
One of the mutations was similar to a variant that was first detected in California. Another mutation was found on variants that were first detected in Brazil and South Africa."
Not a problem.
Moderna COVID-19 Vaccine Retains Neutralizing Activity Against Emerging Variants First Identified in the U.K. and the Republic of South AfricaBusiness Wire
January 25, 2021
"A six-fold reduction in neutralizing titers was observed with the B.1.351 variant relative to prior variants.
Despite this reduction, neutralizing titer levels with B.1.351 remain above levels that are expected to be protective. This study was conducted in collaboration with the Vaccine Research Center (VRC) at the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH). The manuscript has been submitted as a preprint to bioRxiv and will be submitted for peer-reviewed publication."