FAIRMED is a Swiss development organization dedicated to work with its motto “Health for the Poorest”. The organization plays an important role in providing health care access to the marginalized communities and individuals who are prone to diseases, disability, and poverty. The core focus of FAIRMED's work in Nepal is Neglected Tropical Diseases (NTDs) – Leprosy, LF, Kalaazar, etc and Maternal and Neonatal Health (MNH), while it interweaves GESI and Disability Inclusive Development (DID) as cross cutting themes into its programs to strengthen the health system and increase the uptake of public health services. FAIRMED identifies most marginalized, discriminated and/or vulnerable populations through mapping pockets of high endemic NTD’s. FAIRMED Foundation Nepal is collaborating with No Leprosy Remains (NLR) in implementing a research project to evaluate the effectiveness of Single Dose Rifampicin Post-Exposure Prophylaxis (SDR-PEP) in four districts of Province 1 (Morang & Jhapa as intervention districts and Sunsari & Udayapur as control districts). This is a retrospective cohort study that involves collection of both primary data (from the examination of contacts to screen for Leprosy) and secondary data (reported by the health service records).