2 yrs duration in terms of leprosy is with regard to -
Rx of paucibacillary leprosy
Rx of multibacillary leprosy
Post Rx surveillance of paucibacillary leprosy
Post Rx surveillance of multibacillary leprosy
It is recommended that paucibacillary cases be examined clinically atleast once a year for a minimum of 2 years after completion of therapy. Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 344
Communicable diseases