Covid19 Vaccine Breakthrough by Pfizer Gives over 90% Success Result
A Covid19 Vaccine breakthrough has been developed by pharmaceutical giant Pfizer. The vaccine is confirmed to give over 90% success results. The analysis is based on 94 cases of infection with SARS-COV-2, the virus that causes Covid19 among those vaccinated and the placebo groups. Researchers had set their projected success rate at the minimum threshold […]
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