On March 11 the World Health Organization officially designated the novel coronavirus outbreak a pandemic. Defined as the worldwide spread of a new disease, such a declaration is the first to be made since the 2009 H1N1 swine flu. As of this writing, there have been approximately 336,000 confirmed cases of the new disease, called COVID-19, resulting in more than 14,600 deaths worldwide.
Image: https://en.wikipedia.org/wiki/Pandemic#/media/File:1918FluVictimsStLouis.jpg