Covid-19 vaccine from Pfizer and BioNTech is strongly effectivehttps://www.statnews.com/2020/11/09/covid-19-vaccine-from-pfizer-and-biontech-is-strongly-effective-early-data-from-large-trial-indicate/ by fabian2k • 6 years ago 4 0 6 years agoSTstatnews.com