(NPR) Novavax Says Its COVID Vaccine Is Extremely Effective

Novavax Says Its COVID Vaccine Is Extremely Effective

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Novavax says its vaccine is 100% effective against the original strain of the coronavirus, and had 93% efficacy against more worrisome variants.



Alastair Grant/AP


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Alastair Grant/AP

The Coronavirus Crisis

Novavax Says Its COVID Vaccine Is Extremely Effective

In a large scale study, Novavax said its vaccine was completely effective against the original coronavirus strain and also effective against some variants. It works differently than other vaccines.