Quote:
Originally Posted by carlos3652
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Yes. And as "DaFace" mentioned, 94% efficacy means that the vaccinated reduced the risk of developing COVID-19 by 94% compared to the placebo/unvaccinated group.
If 185 of the vaccinated group had developed COVID-19, the efficacy would be 0%
Keep in mind that efficacy percentages do NOT mean that that percentage of the vaccinated will develop COVID-19 (e.g., 6 to 7% per above).