PUB HLT 150 Study Guide - Midterm Guide: Amyloid, Bipolar Disorder, Crisis Intervention
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~speedometer (60 miles over 1 hour ~~ 10 new cases over a year) Apr 1: cases (as 2 people die) E. g. cholera deaths and water pumps in london (1854) _radial with decreasing density: point exposure with secondary spread, or environmental with single source. _random uniform: ubiquitous common exposure at tail end of the epidemic; or common risk factor (ncd)/ chronic diseases. _long-term: priority or cyclical (measles every 3 years, a supply of susceptibles accumulates to a critical mass to allow a new wave. Epidemic curves - distribution of cases by onset of symptoms: point source type. Discovery of new diseases as a result of epidemiologic process (e. g. capillariasis) _epidemiologic findings are not always as well-defined as clinical diseases. Epidemic occurs when the incidence (#new cases) in the population not expected to manifest symptoms. Note: high fertility rate, high mortality rate, or even high migration rate (e. g. madagascar has a high % of under-15s)
