Under WHO definitions adopted by the Indian National Leprosy Eradication Programme, 'elimination of leprosy as a public health problem' is achieved when registered prevalence falls below:

• A 1 case per 1000 population
• B Zero cases nationally
• C 1 case per 100,000 population
• D 1 case per 10,000 population ✓

Explanation

Elimination of leprosy as a public health problem was defined by WHO as a registered prevalence of less than 1 case per 10,000 population, a level India attained at the national level in 2005. Incidence continues because transmission persists, so new case detection remains substantial. The other thresholds correspond to different metrics or diseases, and eradication implying zero transmission has not been reached anywhere.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.