Sao Paulo Governor Joao Doria gives a news conference at a vaccination center set up inside a public school in Serrana, Sao Paulo state, Brazil, Wednesday, Feb. 17, 2021. Brazil's Butantan Institute has started a mass vaccination on Wednesday of the city's entire adult population, about 30,000 people, to test the virus' behavior in response to the vaccine. (AP Photo/Andre Penner)
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