AstraZeneca’s Covid-19 Vaccine Is Found to Be 79% Effective in U.S. Study
The coronavirus vaccine developed by AstraZeneca and the University of Oxford provided strong protection against Covid-19 in a large clinical trial in the United States, completely preventing the worst outcomes from the disease, according to results announced on Monday. Although no clinical trial is large enough to rule out extremely rare side effects, AstraZeneca reported…
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