Nokea
When is initiating surveillance for a new public health problem justified?
- A. If it is a communicable disease with a high case-fatality rate.
- B. If the problem is new and systematically collected data are needed to characterize the disease.
- C. If a program at CDC has recommended its addition to better understand national trends and patterns.
- D. To guide, monitor, and evaluate programs to prevent or control the problem.
Correct Answer: D
Rationale: Surveillance is essential to guide and evaluate prevention and control strategies.
You may also like to solve these questions
Define the following terms: latency
- A. The time between exposure to a hazard and the onset of symptoms.
- B. The strength of a chemical bond.
- C. The period during which a disease is contagious.
- D. The duration of a clinical trial.
Correct Answer: A
Rationale: Latency refers to the delay between exposure to a harmful agent and the manifestation of health effects.
For 95% confidence limit truth is
- A. Reduces 95% confidence of values
- B. 96 of standard error of mean
- C. 56 of standard error of mean
- D. 5% of standard error of mean
Correct Answer: B
Rationale: For 95% confidence limits, approximately 1.96 times the standard error is used.
Randomization is done in experimental study:
- A. to eliminate selection bias.
- B. to select control
- C. to eliminate confounding bias
- D. all of above
Correct Answer: D
Rationale: Randomization helps to eliminate selection and confounding biases while selecting controls.
Descriptive epidemiology is essential for 'characterizing the outbreak' by time, place, and person, but has little bearing on the analytic epidemiology.
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: Descriptive epidemiology informs the development of hypotheses tested in analytic studies.
Which of the following is the strength of Case control study?
- A. rare disease
- B. bias can be minimized
- C. temporal relationship can be established
- D. relative risk can be calculated
Correct Answer: A
Rationale: Case-control studies are particularly useful for studying rare diseases.