AstraZeneca vaccine 79 percent effective at preventing COVID symptoms(02)

AstraZeneca vaccine 79 percent effective at preventing COVID symptoms(02)


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AstraZeneca’s U.S. trial shows coronavirus vaccine is 79 percent La vacuna de AstraZeneca tiene un 79 de efectividad y no presenta AstraZeneca vaccine 79 percent effective at preventing COVID symptoms AstraZeneca Finds Covid Vaccine 79 Effective In US Trial; Stock Up In AstraZeneca’s Covid19 Vaccine Is Safe, 79 Effective in LateStage U.S