Data Challenges Efficacy Of Vaccine Made By Chinese Company

By Maria Godoy

Many nations are betting on a vaccine made in China to immunize their populations. Clinical trial data from Brazil shows it is only 50% effective — less than the 78% previously reported.

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Source:: https://www.npr.org/2021/01/18/957981946/data-challenges-efficacy-of-vaccine-made-by-chinese-company

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