Pfizer’s Covid-19 vaccine is 92% effective at preventing serious illness, Israeli study says

Ninety-two per cent of recipients of the Pfizer vaccine have been protected from developing severe symptoms of Covid-19, the most comprehensive study of the jab has found. The study, published in The New England Journal of Medicine, was based on data from 1.2 million patients of Israel’s largest healthcare provider, half of whom had received the Pfizer-BioNTech vaccine. It was conducted by doctors and researchers led by Professor Ran Balicer, of Israel’s Clalit Health Services, along with a team of senior researchers from Harvard University, and is the largest study of its kind.