Moderna Says Vaccine 100% Effective Against Severe Covid, Seeks Clearance
COVID-19 Vaccine: Moderna said it expects to have approximately 20 million doses of the vaccine, called mRNA-1273, available in the US by the end of the year.
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It hopes to have the vaccine available for adolescents by September, Zaks said.
Other vaccine makers have said they are studying their vaccines in young people as well.