According to WHO leprosy is a public health problem if prevalence is more than: (A) 0.10%, (B) 0.01%, (C) 0.50%, (D) 1%
Answer is B. At the end 2000, leprosy was a public health problem in 10 countries (prevalence rate > 1/10,000), mainly in Africa, Asia and Latin America. Thus to call it a public health problem prevalence per 10,000 should be more than 1 and per 100 should be > 0.01.