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Continue to ChatCOVID-19 vaccine is 90 percent effective: Pfizer and BioNTech https://www.newsbuyback.com/2020/11/covid-19-vaccine-is-90-percent-effective-pfizer-and-biontech/
COVID-19 vaccine is 90 percent effective: Pfizer and BioNTech https://www.newsbuyback.com/2020/11/covid-19-vaccine-is-90-percent-effective-pfizer-and-biontech/