Control of the Cholera Pandemic

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John Snow |
Name of Model: Control of Cholera Pandemic
Area of Use: Population and Migration
Person who developed model/theory: John Snow- 1813-1858. He was an English physician, and the father of epidemiology.
Premise: Dr. John Snow mapped out the Soho District and used symbols to mark people with cholera. He saw that people around the water pump were more infected with the disease, and so he made it impossible to get water from the pump which decreased the amount of cases of cholera. People started getting better; there weren’t as many cases of cholera.
Function: Dr. Snow used a “P” to mark the water pumps that people in the Soho District got their water from. He also marked each infected person that had cholera with a charted dot map.
Strengths: This showed how many people got cholera because of water.
Weaknesses: This isn’t accurate because not everyone would have said if they had cholera or not. So it wouldn’t be accurate.
Effectiveness in field in past and today: it was effective in the past, but is not used today.

Ernest Burgess

Name of Model: Concentric Zone Model
Area of Use: Urbanization
Person who developed model/theory: Ernest Watson Burgess 1886 – 1966, he was born in Tisbury, Ontario. He was educated at Kingfisher College in Oklahoma. Burgess was hired as an urban sociologist at the University of Chicago. Burgess also served as the 24th President of the American Sociological Association.
Premise: In the center, zone 1, which is subdivided into several sub districts (retail, theater, financial, ect.). The zone of transition, zone 2, is characterized by residential deterioration by business and light manufacturing. Zone 3 is an area of closely spaced adequate homes occupied by the blue-collar labor force. Zone 4 consists of middle-class residents, and zone 5 is the suburban area. As the city grew, inner zones fulfilled on outer ones, so that the functions overtook zone 2 and the problem areas of zone 2 affected the inner

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