Epidemiološki rečnik. Drugo jugoslovensko izdanje. John M. Last; Urednik Zoran Radovanović, Medicinski fakultet Beograd, 2001. Dictionary of veterinary epidemiology. 1st English language ed. Toma Bernard, et al.; Iowa State University Press, 1999., ,
Termin:
Morbidity
Definicija:
State of being diseased, frequenci of diseased individuals