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Home » Sinovac’s COVID-19 Vaccine Shows Only 50 Percent Efficacy in Brazil
Sinovac’s COVID-19 Vaccine Shows Only 50 Percent Efficacy in Brazil
Brazil’s Butantan Institute reported that Sinovac’s COVID-19 vaccine, CoronaVac, demonstrated an overall efficacy of only 50.38 percent in a phase 3 trial, putting it barely over the World Health Organization’s 50 percent efficacy threshold for approval.