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Doctor: This is the best news about the AstraZeneca vaccine
Former Baltimore City Health Commissioner Dr. Leana Wen reacts to the results of a US-based clinical trial that the AstraZeneca Covid-19 vaccine showed 79% efficacy against symptomatic disease.
from CNN.com - RSS Channel https://ift.tt/2Qsquya
from CNN.com - RSS Channel https://ift.tt/2Qsquya
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