In 1985 all the school children near Vellore were examined for evidence of leprosy. The procedure was repeated again in 1986. The following were the results. 1985 a. b. C. 1986: d. e. f. 1. 3. g. h. i. No. of children on the rolls No. of children examined No. of children found to have active leprosy No. of children on the rolls No. of children examined for the first time No. of active cases among the above No. of children re-examined No. of old cases among them No. of new cases among the re-examined children QUESTIONS: : 52,600 : 48,000 : 288 : 54,000 : 6,000 : 46 : 40,000 : 40 80 What was the prevalence of leprosy? a. in 1985 b. in 1986 What was the incidence of leprosy during 1985-1986?