World Health Organization (WHO) Director-General Tedros Adhanom Ghebreyesus attends a daily press briefing on COVID-19. (Photo by FABRICE COFFRINI/AFP via Getty Images)

World Health Organization (WHO) Director-General Tedros Adhanom Ghebreyesus attends a daily press briefing on COVID-19, the novel coronavirus, at the WHO headquaters on February 28, 2020, in Geneva. – The UN health agency on February 28, 2020, upgraded the global risk from the new coronavirus to its highest level, saying the continued increase in cases and countries affected was “clearly of concern”. The number of new coronavirus cases in the world rose to 83,853, including 2,873 deaths, across 56 countries and territories by 1300 GMT on February 28, 2020, according to a report gathered by AFP from official sources. (Photo by FABRICE COFFRINI / AFP) (Photo by FABRICE COFFRINI/AFP via Getty Images)