Geography 1HA3 - Lecture notes (Diseases)

Geography 1HA3 - Lecture notes (Diseases) - Mortality...

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Mortality: death Morbidity: illness Epidemiology – the study of incidence, transmission and control of diseases Epidemic – the temporary, but widespread outbreak of a disease Epi = upon Demos= people Pandemic – a disease occurring over a wide geographic area affecting a high proportion of the population , - Pan = all - Demos = people Epidemiological Transition – a theory stating that the prevailing forms of illness changed from infectious to degenerative types as the demographic transition occurred Stages of the Epidemiological transition Stages 1 and 2: - The stages of “pestilence and famine” - Infectious and parasitic diseases were the main cause of human deaths (e.g., plague, cholera) Stages 3 and 4: - The stages of degenerative and human-created diseases and an increase in chronic disorders associated with aging (e.g., cardiovascular disease, cancer) - Note the decline in infectious disease death (from stages 1 and 2) (possible) Stage 5: - The stage of the re-emergence of infectious and parasitic diseases - Return of diseases thought to have been eradicated or emergence of new diseases (e.g.,
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