26 May

How effective is the Pfizer vaccine?

In placebo-controlled clinical trials the Pfizer vaccine was found to be on average 95% effective in preventing symptomatic COVID-19 infection for people 16 years of age and over.

There is also some evidence that the vaccine may be even more effective in real world use compared to the clinical trials.

However, like any vaccine, the COVID-19 vaccine may not protect everyone who gets vaccinated.