Pfizer Inc. and BioNTech SE’s COVID-19 vaccine was effective against the virus in a study that followed nearly 1.2 million people in Israel, results that public-health experts said to show that immunizations could end the pandemic.
Two doses of the vaccine prevented 94% of COVID-19 cases in 596,618 people vaccinated between Dec. 20 and Feb. 1, about one-quarter of whom were over the age of 60, teams from the Clalit Research Institute and Harvard University reported in a study published Wednesday in the New England Journal of Medicine.
“We are able to get a real-world measure of vaccine effectiveness,” said Ben Reis, a co-author of the study who’s director of the predictive medicine group at Boston Children’s Hospital and Harvard.
