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1. Which of the following is not a key component of the epidemiologic
triad?
A) Host factors
B) Environmental factors
C) Socioeconomic factors
D) Genetic factors
Answer: D) Genetic factors
Rationale: The epidemiologic triad consists of three key components -
host factors, environmental factors, and agent factors.
2. Which of the following is a measure of disease frequency in a
population?
A) Prevalence
B) Incidence
C) Mortality rate
D) Case fatality rate
Answer: A) Prevalence
Rationale: Prevalence is the proportion of a population affected by a
particular disease or condition at a specific point in time.
3. Which of the following is considered a core function of public health
surveillance?
A) Disease prevention
B) Data collection
C) Health education
D) Policy development
Answer: B) Data collection
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