A promoter talks about the COVID-19 vaccine produced by Sinopharm subsidiary CNBG during a trade fair in Beijing on Sunday, Sept. 6, 2020. The Chinese drugmaker said Wednesday, Dec. 30, 2020 its coronavirus vaccine was found to be 79.3% effective at preventing infection in preliminary data from the final round of testing, moving Beijing closer to possibly being able to fulfill its pledge to supply other developing countries.(AP Photo/Ng Han Guan)
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