2 Companies Say Their Vaccines Are 95% Effective. What Does That Mean?
You might assume that 95 out of every 100 people vaccinated will be protected from Covid-19. But that’s not how the math works.
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2 Companies Say Their Vaccines Are 95% Effective. What Does That Mean?
You might assume that 95 out of every 100 people vaccinated will be protected from Covid-19. But that’s not how the math works.