Posted in Web Pfizer says COVID-19 vaccine 95% effective, works in … February 15, 2021 Pfizer said Wednesday that new test results show its COVID-19 vaccine is 95% effective, has no serious side effects and protects older people most at risk of dying of the disease — the last data … https://www.latimes.com/world-nation/story/2020-11-18/pfizer-covid-19-shot-95-percent-effective-seeking-clearance-soon