EPI 201 Lecture Notes - Lecture 2: Yersinia Pestis, Rodent, Typhoid Fever
Document Summary
Black plague: happened in western europe (bacterial infection) yersina pestis, rat hitched on ship. 1854 cholera: cholera 1831- outbreak in london (killed more than 10 thousand people, john snow-(father of epidemiology) cholera spread by contaminated water, he removed the water pump --> clear the london cholera. 1918 in uenza: during 1918 in uenza, world war i was happening. 20 to 50 millions die in the disease. 1981 hiv/aids (pandemic: june 1981 published a report increase of disease of lung infectious, 273 cases (1981, 36 million people die of aids, majority happened in africa. Think pair share: recent outbreak connected more to social conditions, old outbreak are related in environmental conditions. Disease occur in the intersect between the above three. Disease result when the agent comes into contact with a susceptible host in an environment that support transmission. Why do outbreak occur: when agents are winning (eg: sars, new agents in susceptible host population (sars, change to agent (in uenza 1918)
