AstraZeneca reiterated on Wednesday that its Covid-19 vaccine was very effective at preventing the disease, based on more recent data than was included when the company announced the interim results of its U.S. clinical trial on Monday. nyti.ms
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AstraZeneca says US trial data shows vaccine 79% effective
@abcnews.go.com4 years ago
AstraZeneca says US trial data shows vaccine 79% effective
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2nd Coronavirus Vaccine Shows Early Success in U.S. Tests
