Biden Official Says New Study Is ‘Wake Up Call’ After Pfizer’s Efficacy Plummets to 42% as Delta Variant Takes Hold — The Most Revolutionary Act

By  Megan Redshaw A new preprint study showed mRNA vaccines’ effectiveness plummeted in July when Delta variant was dominant — with Moderna only 76% effective and Pfizer only 42% effective against infection. A new preprint study that raises concerns about the effectiveness of mRNA COVID vaccines — particularly Pfizer’s — against the Delta variant has […]

Biden Official Says New Study Is ‘Wake Up Call’ After Pfizer’s Efficacy Plummets to 42% as Delta Variant Takes Hold — The Most Revolutionary Act

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