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No Comments Analysts said the effectiveness of Sinovac’s Coronavac vaccinein Brazil – the lowest among its global competitors – could affect international confidence in Chinese-made vaccines and hamper Beijing’s efforts to repair its image from its early mismanagement of the original outbreak by supplying Covid-19 vaccines to developing countries. The Butantan Institute and the Government of Sao Paulo report that the coronavirus vaccine achieved an overall efficacy rate of 50.38% in the clinical trial conducted in Brazil, in addition to (an efficacy rate of) 78% for mild cases and 100% for moderate and severe cases of Covid “All rates are...