Brazil's Bolsonaro says he was right to question Chinese COVID-19 vaccine


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SAO PAULO, Jan 13 (Reuters) - Brazilian President Jair Bolsonaro said on Wednesday he was right to criticize the credibility of a Chinese COVID-19 vaccine developed by Sinovac Biotech that posted disappointing efficacy results in local trials.On Tuesday, researchers in Sao Paulo state announced that the Chinese vaccine was 50.4% effective at preventing symptomatic infections in a local trial - barely enough for regulatory approval and well below the rate announced last week.Bolsonaro, a far-right former army captain, is a longstanding China hawk. He has repeatedly criticized the Sinovac shot, which was being late-stage tested by Sao Paulo's Butantan Institute,...