KP231 Lecture Notes - Lecture 4: Pertussis, Infant Mortality, Typhoid Fever
14 Dec 2017
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Document Summary
Reason 1: eradicated infectious diseases, shifted to diseases related to unhealthy lifestyles/behaviours; contributed to longer life expectancy. A disease that can spread from person to person; caused by microorganisms such as bacteria and viruses: leading cause of death in 1900"s and prior, exposure to organisms. Smallpox, tb, flu, whooping cough, typhoid, diphtheria. Develops slowly and persists for a long period of time. Average number of years of life remaining for a population of individuals: all of same age, expressed from birth as avg. number of years of life that newborns might expect to live. Reduction in infant mortality, deaths during childhood, deaths from illness. Control of/reduction in infectious disease: widespread vaccination, improved medical care/antibiotics, increasing control of disease-causing microorganisms, improvements in nutrition, hygiene, public sanitation (water disposal) Cost related to increased life expectancy increased: increased number of people living to middle and old age. Advances in medical treatment: but at high cost.
