Director General of the World Health Organization, WHO, Tedros Adhanom Ghebreyesus, left, and Professor Didier Houssin, the Chair of the Emergency Committee hold a press conference after an Emergency Committee meeting on what scientists have identified as a new coronavirus, at the World Health Organization (WHO) headquarters in Geneva, Switzerland, Wednesday, Jan. 22, 2020. Health authorities are closely watching an outbreak of respiratory illness caused by a new virus from China. Governments are stepping up surveillance of airline passengers from central China and taking other steps to try to control the outbreak. (Salvatore Di Nolfi/Keystone via AP)
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