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Vaccine Efficacy: -410.58%

-411% Efficacy of COVID-19 vaccines in UK to prevent death of patients seeking treatment.

The unvaccinated people must have died on the way to hospital otherwise the vaccine efficacy would look way better.

  • unvaxxed events / unvaxxed population (Control Event Rate or CER)
  • vaxxed events / vaxxed population (Experimental Event Rate or EER)
  • (CER-EER) / CER = Vaccine Efficacy or the absolute risk reduction relative to the unvaxxed event rate.

Try it yourself!