Epidemiology Exam 1 Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Define Epidemiology - Correct Answers ✅Epidemiology is the study of patterns of health and disease in populations and the factors that influence these patterns.Epidemiology involves describing the patterns of disease in relation to what three factors? - Correct Answers ✅individuals, place, and time What are the six uses of epidemiology? - Correct Answers ✅Investigation and control of a disease of unknown etiology Identification of the etiology & risk factors of a disease Determination of the origin of a disease of known etiology To study the natural history and prognosis of a disease Planning, monitoring & assessment of d'se control programs Assessment of the magnitude and impact of a disease What are the four types of epidemiology? - Correct Answers ✅Descriptive, Analytical, Experimental, and Theoretical What questions does descriptive epidemiology answer? - Correct Answers ✅Who, what, where, and when.What questions does analytical epidemiology answer? - Correct Answers ✅Why and how. 1 / 4
Epidemiology Exam 1 Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) What is the purpose of experimental epidemiology? - Correct Answers ✅Tests hypotheses formulated by descriptive and analytical epidemiology about disease patterns.What are the seven sub-disciplines of epidemiology? - Correct Answers ✅Clinical, computational, genetic, field, participatory, molecular, and spatial/geographical What is a determinant of health/disease? - Correct Answers ✅Any factor that when changed, produces a change in disease frequency or disease characteristics.What are the three types of disease determinants? Give an example of each. - Correct Answers ✅Physical-natural disasters Biological-gender, sex, genetic predisposition Behavioral-hand washing What differentiates primary and secondary determinants? - Correct Answers ✅Primary determinants have major effects on the individual or population (ie. the disease causing agent). Secondary determinants predispose or enable the disease to spread(ie. poor hygiene). 2 / 4
Epidemiology Exam 1 Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) What differentiates intrinsic and extrinsic determinants? - Correct Answers ✅Intrinsic determinants are internal to the host(ie. age, breed, species, etc). Extrinsic determinants are external to the host(ie. trauma, poison, radiation, etc).What is the epidemiologic triad? - Correct Answers ✅The combination of host, agent, and environmental determinants.How does host range of an agent act as a determinant of disease? - Correct Answers ✅The wider an agent's host range is, the better the survival of the agent. A narrower host range makes an infectious agent easier to control.Define infectivity. - Correct Answers ✅Infectivity is an agents ability to enter, multiply and produce change in a host. The change in the host can be anything from disease to immune response with no symptoms.Differentiate between infection, contamination, and pollution.
- Correct Answers ✅Infection-entry and multiplication of
agent in the body.Contamination-presence of an agent on exterior surfaces of a body or object.Pollution-offensive matter in the environment that is not an infectious agent. 3 / 4
Epidemiology Exam 1 Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Define infectious dose. - Correct Answers ✅The infectious dose is the quantity of an agent necessary for transmission and infection from one host to the next.Define viability. - Correct Answers ✅Ability of an agent to withstand environmental stress.Differentiate between pathogenicity and virulence. - Correct Answers ✅Pathogenicity is the ability of an agent to produce clinical disease. Virulence is the degree of pathogenicity or severity of the disease caused.Define immunogenicity. - Correct Answers ✅Ability of an agent to stimulate an immune response in the host. High immunogenicity is associated with fewer reoccurrences of disease in an individual.Define antigenic stability. - Correct Answers ✅Antigenic stability is the likelyhood that the antigenic structure of an agent will undergo mutation or change. Agents with high antigenic stability are easy to make vaccines for that have long lasting immune protection.What are the three categories of genetic diseases? - Correct Answers ✅Chromosomal disorders mendelian disorders
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