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 US clinical trial on Monday. The company said in a news release that its vaccine was 76% effective at preventing Covid-19.from World News Headlines, Latest International News, World Breaking News - Times of India https://ift.tt/3soNxIl
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