Pfizer-BioNTech Shot Could Help End Pandemic, Israel Study Shows

Pfizer Inc. and BioNTech SE’s Covid-19 vaccine was overwhelmingly effective against the virus in a study that followed nearly 1.2 million people in Israel, results that public-health experts said 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.