Covid 19 Vaccine Progress
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Moderna’s coronavirus vaccine is 94.5% effective, company saysA week ago, competitor Pfizer Inc. announced its own COVID-19 vaccine appeared similarly effective.HealthNov 16, 2020
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Pfizer’s coronavirus vaccine may be 90% effective, early data suggestsPfizer cautioned the initial protection rate might change by the time the study ends. Even revealing such early data is highly unusual.HealthNov 9, 2020
