GEV 1050 Lecture Notes - Lecture 12: Dengue Fever, Avian Influenza, Yellow Fever
28 Nov 2016
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Hazards and ecosystem health: overlap with human activities. Definitions: hazards: anything that can cause injury, death, disease to humans/ecosystems, vulnerability: how vulnerable an individual or population is to that risk, risk: probability of a hazard occurring that takes into account vulnerability of the pop/indiv. =hazard x vulnerability: morbidity: incidence of disease in a population, mortality: incidence of death in a population. Top hazards that shorten lifespan of a person in us: poverty (shortens lifespan by 7-10 male, born male (7 years, smoking (6-10 years, overweight by 35, unmarried. Scientists know patient zero, since him: 28k cases 11k deaths. No vaccinations (primarily) antibiotic resistance, global travel, climate change, lateral gene transfer (pass genes between bacterial species) Urbanization: more people living in urban environments than rural density dependent. More developed countries have aging population (65 y and older) Ld50: lethal dose, response in 50% of the population. Ed50: effective dose, causing some response, usually lower than the.
