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131944 Social & Preventive Medicine

Which one of the following statements about leprosy is true?

AGroup surves for case detection are carried out when prevalence of leprosy is less than 1 per 1000
BFor determining the bacteriological index, ++ in a smear indicates 2 bacilli in every field
CMinimum duration of treatment for paucibacillary cases is for 9 months
DMinimum duration of treatment for multibacillary case is for 12 months (Correct Answer)