epidemiology is the study of the origin and spread of disease in a given population. epidemiology emerged as…

epidemiology is the study of the origin and spread of disease in a given population. epidemiology emerged as an applied science in 1854, when the english physician john snow discovered the source of one of londons periodic cholera epidemics. specifically, he had gone to the neighborhoods where the patients lived and asked them what they did every day, where they worked, what they ate and drank, and many other questions about their lives and activities. finally, after sifting through a huge pile of information, snow hit upon the clue to the origin of the disease. he found that they all had one thing in common: they had drunk water from a particular pump on broad street. snow simply shut off the pump and, with that simple act, stopped the epidemic in its tracks. not until many years later, with the discovery of germs, could anyone explain why shutting down the pump was effective. dr. snow had removed the source of the cholera bacterium.\nthe main patterns of organization of the selection are time order and\n- definition/example\n- comparison\n- contrast\n- order of importance

epidemiology is the study of the origin and spread of disease in a given population. epidemiology emerged as an applied science in 1854, when the english physician john snow discovered the source of one of londons periodic cholera epidemics. specifically, he had gone to the neighborhoods where the patients lived and asked them what they did every day, where they worked, what they ate and drank, and many other questions about their lives and activities. finally, after sifting through a huge pile of information, snow hit upon the clue to the origin of the disease. he found that they all had one thing in common: they had drunk water from a particular pump on broad street. snow simply shut off the pump and, with that simple act, stopped the epidemic in its tracks. not until many years later, with the discovery of germs, could anyone explain why shutting down the pump was effective. dr. snow had removed the source of the cholera bacterium.\nthe main patterns of organization of the selection are time order and\n- definition/example\n- comparison\n- contrast\n- order of importance

Answer

Brief Explanations:

The passage first defines epidemiology as the study of the origin and spread of disease in a population. Then it gives the example of John Snow's work during the London cholera epidemic in 1854. So the patterns of organization are time - order (mentioning the year 1854 and sequence of events) and definition/example.

Answer:

definition/example