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Epidemiology - Coggle Diagram
Epidemiology
modes of transportation
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indirect contact- non-living objects, doorknobs, towels etc
Vector- carries the pathogen on their body, not as an infection, they then become infected and transmit it (mosquitos, ticks, flies)
patterns of incidence
Sporadic= disease seen only occasionally and usually without geographic concentration Ex: tetanus, rabies, plague
Endemic- diseases that are constantly present (often at a low level) in a population within a particular geographic region Ex: malaria in Brazil
Epidemic- diseases for which a larger than expected number of cases occurs in a short time within a geographic region ex: influenza
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types of outbreak
Common source spread- there is a single source for all of the individuals infected. Point spread- common source operates for a short time period. (potato salad at picnic)
Continuous common source spread- the infection occurs for an extended period of time, longer than the incubation period (water continually contaminated by sewer water)
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types of transmissions
reservoir- living organisms or non living sites where pathogens can persist obverse a long period of time and normally reside (soil, water, blue jay, monkey)
vector- always things like lice, ticks, mosquitos
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analyzing disease
Morbidity- number of people sick/populating exposed, then put into a percent
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John Snow- British physician known as the father of epidemiology. determined the source of the 1854 broad street cholera epidemic in London.
Florence Nightingale- nurse dispatched by the British military to care for wounded soldiers. she kept records of cases of illnesses and death.
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