Biden Official Says New Study Is ‘Wake Up Call’ After Pfizer’s Efficacy Plummets to 42% as Delta Variant Takes Hold
Pfizer’s Efficacy Plummets to 42% 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. By Megan Redshaw The Defender is experiencing censorship on many social channels. Be sure to stay in touch …