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re: Pfizer efficacy down to 42% while FDA standard for safe/effective/approval is 50%
Posted on 8/11/21 at 1:08 am to Shaft Williams
Posted on 8/11/21 at 1:08 am to Shaft Williams
Facts schmacts
Posted on 8/11/21 at 8:47 am to John McClane
quote:
Facts schmacts
From the article he screenshotted:
The mRNA vaccine from Pfizer (PFE.N) and BioNTech (22UAy.DE) may be less effective than Moderna's against the Delta variant of the coronavirus, according to two reports posted on medRxiv on Sunday ahead of peer review. In a study of more than 50,000 patients in the Mayo Clinic Health System, researchers found the effectiveness of Moderna's vaccine against infection had dropped to 76% in July - when the Delta variant was predominant - from 86% in early 2021. Over the same period, the effectiveness of the Pfizer/BioNTech vaccine had fallen to 42% from 76%, researchers said. While both vaccines remain effective at preventing COVID hospitalization, a Moderna booster shot may be necessary soon for anyone who got the Pfizer or Moderna vaccines earlier this year, said Dr. Venky Soundararajan of Massachusetts data analytics company nference, who led the Mayo study.
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