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Would 3 COVID vaccine doses beat virus variants? Moderna testing

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Moderna has additionally begun testing whether or not merely giving a 3rd dose of the unique vaccine would supply an additional immune increase in opposition to variants.

CAMBRIDGE, Mass — Moderna introduced Wednesday it has brewed experimental doses of its COVID-19 vaccine that higher match a mutated model of the virus, prepared for exams to inform how the replace works.

Well being authorities say first-generation COVID-19 vaccines nonetheless shield in opposition to variants of the virus which are rising in several components of the world. However in case the vaccines finally must be up to date, producers are engaged on how you can tweak their recipes.

The variant sparking probably the most concern at the moment is one which first emerged in South Africa. Moderna mentioned it has made doses of vaccine particularly focused to that variant and shipped them to the Nationwide Institutes of Well being for a examine.

U.S. regulators say a revamped vaccine wouldn’t must be studied for months in 1000’s of individuals. However it might want testing in a number of hundred folks, to see if their immune programs react equally to the up to date shot as to the unique.

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Moderna mentioned it additionally has begun testing whether or not merely giving a 3rd dose of the unique vaccine would supply an additional immune increase that might guard in opposition to variants, even when it’s not a precise match.

In a separate announcement, Moderna additionally mentioned it plans to fabricate 700 million doses of COVID-19 vaccine globally this yr, up from 600 million. The corporate additionally mentioned it was making new manufacturing capability investments that might yield 1.four billion doses in 2022.

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