Nokea
Level of resistance of a community or group of people to a particular disease is
- A. Passive immunity
- B. Active immunity
- C. Herd immunity
- D. None of them
Correct Answer: C
Rationale: Herd immunity refers to the resistance of a group to the spread of a contagious disease due to a significant proportion being immune.
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Community based participatory researches (CBPR) use
- A. Emic perspective
- B. Etic perspective
- C. Technical perspective
- D. Both b and c
Correct Answer: D
Rationale: CBPR often employs both etic and technical perspectives to ensure comprehensive understanding and applicability.
Are you able to define the following?
- A. A system that collects information on cases of specific diseases for epidemiological study.
- B. A national survey on general health status.
- C. A program focused on nutritional assessments.
- D. An annual report on hospital admissions.
Correct Answer: A
Rationale: A disease registry is specifically designed to collect detailed information about cases of particular diseases, making it invaluable for tracking and studying disease patterns.
Comparing numbers and rates of illness in a community, rates are preferred for:
- A. Conducting surveillance for communicable diseases
- B. Deciding how many doses of immune globulin are needed
- C. Estimating subgroups at highest risk
- D. Telling physicians which strain of influenza is most prevalent
Correct Answer: C
Rationale: Rates allow comparisons across populations and help identify high-risk groups.
Describe the overall trends reflected in the chart.
- A. Cyclical increases followed by declines
- B. Steady increase over time
- C. Steady decline over time
- D. Random fluctuations with no pattern
Correct Answer: A
Rationale: Pertussis exhibits cyclical patterns due to waning immunity and vaccination coverage.
The LD50 of highly toxic substance is.... mg/ kg.
- A. less than 1
- B. Jan-50
- C. 51-500
- D. 50-500
Correct Answer: A
Rationale: Highly toxic substances have an LD50 value of less than 1 mg/kg, indicating extreme toxicity.