Moderna Reports First Quarter Fiscal Year 2021 Financial Results and Provides Business Updates Read full article Oops! SARS-CoV-2 Variant Booster Program Update : Single booster dose of 50 µg of mRNA-1273 or mRNA-1273.351 increased neutralizing titers against SARS-CoV-2 and two Variants of Concern (B.1.351, P.1) in previously vaccinated clinical trial participants TeenCOVE Study Update : Initial analysis of the Phase 2/3 TeenCOVE study of mRNA-1273 showed vaccine efficacy against COVID-19 of 96%; mRNA-1273 was generally well tolerated with no serious safety concerns identified to date 2021 and 2022 Vaccine Manufacturing: Company increased its 2021 supply forecast to between 800 million and 1 billion doses; Company making investments to increase global supply for COVID-19 Vaccine to up to 3 billion doses in 2022