No, that is not correct. The "5%" or "95%" number is from the Phase 3 trials and is the efficacy of the vaccine (Pfizer and Moderna have about the same number but the testing conditions were a bit different). The efficacy is the ratio of the number of positive cases from the test group and the number of positive cases from the control group and is statistically significant. This represents the reduction in the probability of you developing COVID if you are exposed and if you are fully vaccinated when compared to someone who wasn't vaccinated. This represents a 20x reduction in the probability. The breakthrough infections for the Phase 3 test group was about 0.02%; nowhere near 5%. The breakthrough percentage for the approximately 100M fully vaccinated is about 0.008%.
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Originally Posted by coffeebean
The vaccine has an effect in everyone who is vaccinated. The 5% is the percentage of people who experience breakthrough infection. Even those people are protected against mild to moderate symptoms of Covid and best yet, those people are protected from dying. Real life effectiveness of the mRNA vaccines have actually shown to be more protective than the efficacy in the trials. Win win for the vaccinated folks.
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