Chinese coronavirus vaccine shows 50% efficacy in Brazil

An employee picks up a vial containing CoronaVac, Sinovac Biotech’s vaccine against the coronavirus disease (COVID-19) at Butantan biomedical production center in Sao Paulo, Brazil, Jan. 12, 2021. Reuters

The Chinese-developed Coronavac Covid-19 vaccine has demonstrated a 50 percent efficacy following tests in Brazil, the organization in charge of its production in the South American country said on Tuesday.…

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