The Pfizer Covid-19 vaccine has proven 94 percent effective in a study involving 1.2 million people in Israel, the first peer-reviewed real world research confirming the power of mass immunization...
source https://www.ndtv.com/world-news/large-real-world-study-confirms-pfizer-covid-vaccine-94-effective-2378032
source https://www.ndtv.com/world-news/large-real-world-study-confirms-pfizer-covid-vaccine-94-effective-2378032
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