Pfizer, Moderna, J&J Vaccines: Efficacy as Delta Variant Concerns Rise
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Pfizer, Moderna, J&J Vaccines: Efficacy as Delta Variant Concerns Rise
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With the delta Covid-19 variant spreading globally, the effectiveness of the BNT162b2 and ChAdOx1 nCoV-19 vaccines has been unclear. https://nej.md/2Xc9U99 | The New England Journal of Medicine
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FacebookThe New England Journal of Medicine
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