@article{99336, keywords = {Household contacts, IgM antiphenolic glycolipid-1 antibody, leprosy, single-dose rifampicin}, author = {Fantoni O and Rusmawardiana R and Yahya Y and Bahar E and Toruan T and Purwoko M}, title = {Comparison of antiphenolic glycolipid-1 antibody levels in seropositive contacts of leprosy after 2 years of single-dose rifampicin as postexposure prophylaxis.}, abstract = {

Background: Leprosy is still a global problem, especially in developing countries, including Indonesia. Ineffective prevention of leprosy leads to active transmission of the disease. World Health Organization (WHO) recommend post-exposure prophylaxis (PEP) with single dose of rifampicin (SDR) for leprosy patients. Previous study showed protective effect of SDR against leprosy, especially for the first 2 years. Hence, the use of PEP and IgM anti PGL-1 examination are required to suspend the chain of leprosy transmission. This study evaluated the effectiveness of SDR administration by comparing IgM anti-PGL-1 antibody levels in seropositive household contacts before and after 2 years of SDR administration.

Methods: Analytical observational laboratory study comparing IgM anti PGL-1 antibody levels before and after 2 years of SDR administration in leprosy contacts, with a prospective follow-up study design. We conducted this study from December 2022 to January 2023 at Dr. Mohammad Hoesin General Hospital Palembang. All seropositive household contacts of leprosy who had been administrated SDR 2 years ago were included, then PGL-1 antibody levels were examined.

Results: The use of SDR showed significant improvement in leprosy contacts after 2 years (P=0.000). The median antibody level before SDR administration was 1,209.20 (615.81 - 4,353.60), which decrease to 146.03 (0 - 2,487.80) U/mL after 2 years. There was statistically significant relationship between history of BCG vaccination (P=0.003) and IgM PGL-1 antibody levels after 2 years of SDR administration.

Conclusion: There is a significant decrease in IgM anti PGL-1 antibody levels among leprosy contacts after 2 years of SDR chemoprophylaxis administration.

}, year = {2023}, journal = {International journal of mycobacteriology}, volume = {12}, pages = {399-406}, month = {01/2023}, issn = {2212-554X}, doi = {10.4103/ijmy.ijmy_118_23}, language = {eng}, }