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Epidemiology- Gordis 7th Edition By David D Celentano; Moyses Szklo, Verified Chapters
Epidemiology- Gordis 7th Edition By David D Celentano; Moyses Szklo, Verified Chapters
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Epidemiology- GordisWhat is epidemiology? - ANS The study of how disease is distributed in populations and
the factors that influence or determine this distribution.
What are the specific objectives of epidemiology? - ANS First, to identify the etiology or
the cause of a disease and the risk factors-that is, factors that increase a person's risk
for a disease.
Second, to determine the extent of disease found in the community.
Third, to study the natural history and prognosis of disease.
Fourth, to evaluate both existing and new preventive and therapeutic measures and
modes of health care delivery.
Fifth, to provide the foundation for developing public policy and making regulatory
decisions relating to environmental problems.
What were the 4 leading causes of death in 2000? - ANS Heart disease, cancer,
cerebrovascular disease or stroke, and chronic lower respiratory diseases.
What is the definition of primary prevention? - ANS An action taken to prevent the
development of a disease in a person who is well and does not have the disease in
question.
What is the definition of secondary prevention? - ANS The identification of people who
have developed a disease, at an early stage in the disease's natural history, through
screening and early intervention.
Who was the first person to create a cowpox vaccine? - ANS Edward Jenner
Who determined that cholera was spread by contaminated water in England in the 19th
century? - ANS John Snow
What is the epidemiologic triad? - ANS The interaction of the human host, an infectious
or other type of agent, and the environment that promotes the exposure.
What is direct transmission? - ANS A disease is transmitted person to person by means
of direct contact.
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