Question 1 0.2 out of 0.2 points Person, place, and time characterize the description of an epidemiologic problem. Using your knowledge of outbreak investigations, what can occur with propagated outbreaks? Selected Answer: C. Can generate secondary infections with intervals between peaks of usual incubation period Answers: A. Same person or vehicle is the reservoir or means of transmission B. Can generate tertiary infections following exposure to a primary case C. Can generate secondary infections with intervals between peaks of usual incubation period D. Infection transmitted from person to person over a short period of time Response Feedback : A propagated outbreak is one where the infection is transmitted from person to person over a longer period of time than with a common source outbreak, and it can generate secondary infections with intervals between peaks that approximate the usual incubation period for the infection. A common source outbreak is one that has the same origin. Secondary infections are those that occur within the accepted incubation period following exposure to a primary case. Question 2 0.2 out of 0.2 points According to the germ theory of disease, specific microorganisms cause a specific disease. Using your knowledge that the epidemiologic triangle is a model that scientists have developed for studying health problems, what is the microbe that causes the disease called? Selected Answer: D. Agent Answers: A. Host B. Environm
ent C. Organism D. Agent Response Feedback : The agent , or the microbe that causes the disease, is the “what” of the triangle. The host , or the organism that is harboring the infectious agent, is the “who” of the triangle. The environment , which includes those external factors that cause or allow disease transmission, is the “where” of the triangle. Question 3 0.2 out of 0.2 points There is a SARS outbreak in your community. You are responsible for the dissemination of the education plan adopted by your Public Health Department. Key components of the plan will include which of the following? (select all that apply) Selected Answers: A. Respiratory hygiene E. Hand hygiene Answers: A. Respiratory hygiene B. Contact precautions for all cases C. Rapid transmission of the disease D. Strict isolation in a hospital setting for all cases E.
- Spring '14