In boost for Covid-19 battle, Pfizer vaccine found 94% effective in real world

The research in Israel, two months into one of the world’s fastest rollouts, showed two doses of the Pfizer shot cut symptomatic cases by 94% across all age groups and severe illnesses by nearly as much.

The first big real-world study of the Pfizer/BioNTech vaccine to be independently reviewed shows the shot is highly effective at preventing Covid-19, in a potentially landmark moment for countries desperate to end lockdowns and reopen economies.