P H 101 Lecture Notes - Lecture 3: Tuskegee Syphilis Experiment, Cohort Study, Odds Ratio
Document Summary
What is epidemiology: study of the distribution and determinants of disease and injuries in human populations to prevent and control health problems. Distribution- trends in diseases: prevalence, incidence, populations most at risk. Distribution of disease/ injury: epidemiologists ask: When did they get the disease? (time) Where is the disease occurring? (place: example: hepatitis a and shoeleather epidemiology . Epidemic surveillance terms: endemic- usual and expected rate of disease within a speci c area, epidemic- increase in frequency of disease beyond the usual/expected rate, pandemic- epidemic that has spread to multiple regions. Noti able diseases: 67 federally reportable disease (as of 2017) Zika: some states require additional reporting. Epidemic surveillance functions: protects the public against disease, controls spread of known disease, recognition of new diseases, importance has increase with threat of bioterrorism. John snow: father of epidemiology, studied the spread of cholera in london between 1853-1854, suspected thames river as the source of contamination.
