Time to clear up some confusion on vaccine efficacy and what the numbers actually mean. Let’s take Pfizer’s clinical trials for an example. One common misunderstanding is that 95% efficacy means 5% of vaccinated people got COVID. But that& #39;s not true; the actual percentage of

vaccinated people in Pfizer’s trials who got COVID-19 was about a HUNDRED times less than that: 0.04%. What the 95% actually means is that vaccinated participants had a 95% LOWER risk of getting COVID-19 compared with the control group participants, who weren& #39;t vaccinated.

In other words, vaccinated participants in the Pfizer clinical trial were 20 times LESS likely than the control group to get COVID-19. What is even better, is that with real-world data, we are seeing the effectiveness of these vaccines EXCEED that of their clinical trials.