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Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus speaks during a press conference on occasion of the Global Vaccination Summit in Brussels, Belgium, Sept. 12, 2019. (Xinhua/Zheng Huansong)
Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus speaks during a press conference on occasion of the Global Vaccination Summit in Brussels, Belgium, Sept. 12, 2019. (Xinhua/Zheng Huansong)