Pandemic 03 : An epidemic occurring over a very wide area (several countries or continents) and usually affecting a large proportion of the population. An example is the 1918 Spanish Influenza pandemic
Cornell University, Department Neurobiology and Behavior, Course: Clinical Neurobiology, Glossary of Epidemiological Terms, New York, USA 2012. https://courses.cit.cornell.edu/bionb4280/Epidemio logy%20Terms.pdf, (Dzstr Prep/ Epid - Amer) {1004}
