Pfizer COVID-19 Vaccine Found to be More than 90 Percent Effective
This week, Pfizer and BioNTech announced their vaccine candidate was found to be more than 90 percent effective in preventing COVID-19 in participants without evidence of prior COVID-19 infection in the first interim efficacy analysis. The study enrolled 43,538 participants and evaluated 94 confirmed COVID-19 cases in trial participants. No serious safety concerns were observed…
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