An outbreak investigation of dengue in a village finds 3 confirmed dengue fever deaths among 50 laboratory-confirmed cases. The Case Fatality Rate (CFR) is:
- A 3%
- B 6% ✓
- C 0.6%
- D 1.5%
Correct answer: B. 6%
Explanation
Case Fatality Rate (CFR) = (Number of deaths due to disease / Number of confirmed cases of that disease) × 100 = (3/50) × 100 = 6%. CFR is a measure of disease severity and case-management quality. It differs from mortality rate (which uses total population as denominator). For dengue, global CFR is typically <1% with good clinical management but can be higher in under-resourced settings.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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