epidemiology

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Epidemiology

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From Late Latin epidemia + οlogy, from Ancient Greek επιδημία (epidemia) + λόγος (logos), from επί (upon) and δήμος (people) (desease upon people and theory). See also epidemic.

epidemiology (uncountable)

(sciences) The branch of a science dealing with the spread and control of diseases, computer viruses, concepts etc. throughout populations or systems.
(sciences) The epidemiological body of knowledge about a particular thing.

branch of medicine dealing with transmission and control of disease in populations