Source:http://linkedlifedata.com/resource/umls/id/C0014499
MSH: Sudden outbreaks of a disease in a country or region not previously recognized in that area, or a rapid increase in the number of new cases of a previous existing endemic disease. Epidemics can also refer to outbreaks of disease in animal or plant populations.,CHV: An outbreak of a contagious disease that spreads rapidly and widely.