US study of AstraZeneca vaccine proves efficacy l GMA
Dr. Jen Ashton is live with analysis of the AstraZeneca U.S. trial results released overnight. #ABCNews #COVIDVaccine #AstraZeneca #COVID19 source
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Dr. Jen Ashton is live with analysis of the AstraZeneca U.S. trial results released overnight. #ABCNews #COVIDVaccine #AstraZeneca #COVID19 source