The National Leprosy Eradication Programme (NLEP) currently defines a 'new case' of leprosy with grade 2 disability (G2D). In the context of zero leprosy targets, what does a Grade 2 Disability rate among new cases specifically measure?
- A The proportion of cases with positive skin smear at diagnosis
- B The proportion of cases requiring hospitalization
- C The proportion of new cases with visible deformity, reflecting delayed detection ✓
- D The proportion of cases arising from unknown contacts
Correct answer: C. The proportion of new cases with visible deformity, reflecting delayed detection
Explanation
Grade 2 disability (G2D) rate among new leprosy cases measures the proportion of newly detected patients who already have visible deformities (lagophthalmos, clawing, contractures, plantar ulcers), which indicates that diagnosis occurred late after prolonged nerve damage. A high G2D rate signals community-level delayed detection. The WHO zero leprosy targets include G2D rate in children = 0 by 2030. It is a programme indicator for case-finding quality, not bacteriological status or hospitalisation.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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