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  • How is waning vaccine efficacy established?

     Hotspur updated 2 weeks, 2 days ago 1 Member · 1 Post
  • Hotspur

    Member
    November 17, 2021 at 4:38 pm

    The efficacy of the mRNA vaccines was established in the clinical trials. Leaving aside the fact that the efficacy should have been around 1% if the ARR was used rather than the 90%-plus measure gained from the ARR, the figure was established by comparing the treated group with the control group.
    As we know, the control groups in both the Pfizer and Moderna trials were offered the treatment and most took it. So there is now no longer a control group against which to measure the efficacy of the treatment after several months have elapsed. How, then, are figures figures evening the waning efficacy of the treatments established? Where, for example, does ‘40%’ come from?
    (It might also be noted that the absence of a control group makes the end point of the trials redundant. There is no group against which to compare the treated group.)

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