New York, March 12, 2021- Pfizer-BioNtech’s Covid-19 vaccine offers at least 97 per cent effectiveness in symptomatic Covid-19 cases, according to real world data published by the pharma company. The analysis, based on real world data gathered by the Israel Ministry of Health, also found the vaccine’s effectiveness at 94 per cent against asymptomatic SARS-CoV-2 … Continue reading Pfizer vax 97% effective in symptomatic Covid cases: Study