Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus attends a press conference in Geneva, Switzerland, on Feb. 10, 2020. The chief of the World Health Organization (WHO) said Monday that an advance squad of the WHO-led team of international experts had already arrived in China to lay the groundwork for the rest of team members who will cooperate with their Chinese counterparts against the novel coronavirus outbreak. (Xinhua/Chen Junxia)