RIO DE JANEIRO, BRAZIL - The coronavirus vaccine developed by China’s Sinovac Biotech showed a general efficacy of less than 60% in its late-stage trial in Brazil, a news website reported on Monday, citing two people who seen the results.
Sao Paulo’s Butantan biomedical center, which partnered with Sinovac to test and produce the vaccine in Brazil, dismissed the report as “purely speculative” as it prepares to release a more complete set of results on Tuesday at 12:45 p.m. (1545 GMT).
Medical experts and regulators criticized what they called an incomplete disclosure of study results last . . .
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