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COVID-19 vaccine offers 90 percent protection: Pfizer
Nov 09, 2020, at 11:20 pm
Washington: A COVID-19 vaccine, which is jointly developed by Pfizer and BioNTech, has shown 90 percent effectiveness in preventing Covid-19 infections during the ongoing Phase 3 trials, the companies said on Monday.
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COVID-19 vaccine offers 90 percent protection: Pfizer
Mon, Nov 09 2020