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epidemiology(ep?i-de-me-ol'o-je) [ epi- + Gr. demos, people + -logy]
The study of the distribution and determinants of health-related states and events in populations and the application of this study to the control of health problems. Epidemiology is concerned with the study of epidemic diseases caused by infectious agents and with health-related phenomena including accidents, suicide, climate, toxic agents (e.g., lead, air pollution), and catastrophes due to ionizing radiation.See: pharmacoepidemiologyepidemiologicepidemiological (ep?i-de-me-o-loj'ik) (ep?i-de-me-o-loj'i-kal), adjective
emanating from or pertaining to epidemiology.
the associative relationships between the frequency of occurrence of a disease and its determinants, its predisposing and precipitating causes.
all of the epidemiological information about a disease occurrence. Includes information gathering over a short period at the time of an outbreak and the more prolonged follow-up of surveillance afterwards.