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As Virus Grows Stealthier, Vaccine Makers Reconsider Battle Plans

Moderna & Pfizer reported that their vaccines, while still effective, offer less protection against the S. African #coronavirus variant.


Moderna began developing a new form of its vaccine that could be used as a booster shot against the new variant.





https://www.nytimes.com/2021/01/25/health/coronavirus-moderna-vaccine-variant.html

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