PUB HLT 150 Lecture Notes - Lecture 2: Odometer, Health Promotion, Capillariasis
Document Summary
Detels: strategy/method for study of factors relation to etiology/prevention/control of disease; to promote health; efficiently allocate efforts/resources for health promotion, maintenance, medical care in human populations: method/strategy of studying disease/health in human populations. Deals with relationship of various factors and conditions which determine frequencies and distributions of infectious process, a disease, physiologic state in human community. Study of distribution and determinants of health-related states or events in specified populations and the application of this study to control of health problems. Disease characteristics: agent, host, environment, health is state of equilibrium between these, host = genetic profile, immune capacity, poverty, nutritional status, environment biologic and chemical pollution, climate change, Disease descriptors deforestation: time, place, person i. e. observe place/time/person characteristics then gather evidence and produce hypothesis to test. Duration of infectiousness contact rate and frequency u. Number of secondary infections from one case/individual. R0 = reproductivity at the beginning of epidemic. R < 1 then epidemic dies out.
