Encyclopedia
Epidemic
Epidemic: mass, progressive in time and space within a specific region spread of an infectious disease among humans, significantly exceeding the normally registered level of morbidity on this territory
Source: "SAFETY IN EMERGENCY SITUATIONS. BIO-SOCIAL EMERGENCY SITUATIONS. TERMS AND DEFINITIONS. GOST R 22.0.04-95"
(approved by the Decree of the Russian State Standard dated January 25, 1995 No. 16)