Ethiopian Minister of Foreign Affairs Tedros Adhanom Ghebreyesus attends a press conference launching his candidacy to the post of Director General of the World Health Organization (WHO), on the sidelines of the WHO's annual assembly, on May 24, 2016, in Geneva. Delegates from 194 member-states gather for the second day of the WHO's annual assembly, with the UN agency's chief Margaret Chan warning in an opening address that the world was not prepared to cope with a rising threat from infectious diseases. / AFP / FABRICE