US biotech firm Novavax said Thursday its two-shot Covid-19 vaccine showed an overall efficacy of 89.3 percent in a major Phase 3 clinical trial in Britain, and remained highly effective against a...
source https://www.ndtv.com/world-news/novavax-covid-vaccine-highly-effective-but-not-against-south-africa-variant-2359680
source https://www.ndtv.com/world-news/novavax-covid-vaccine-highly-effective-but-not-against-south-africa-variant-2359680
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