Butantan study shows higher efficiency of CoronaVac

The study on the efficiency of vaccine CoronaVac, being carried out by Butantan Institute analyzing the immunity of the population of Serrana, São Paulo, found that 99 percent of the people showed seroconversion—i.e. they have developed the antibodies against a COVID-19 infection—three months after receiving the second dose of the inoculation. These are the first […]

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