Pfizer-BioNTech vaccine sharply reduces symptomatic Covid-19 in the real world, Israeli researchers say February 15, 2021 by Monique Good news from research using large numbers of the Pfizer Covid-19 vaccine. https://www.cnn.com/2021/02/15/health/pfizer-biontech-covid-vaccine-reduces-infections-israel-study-intl/index.html Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn Related