%0 Journal Article %T High Efficacy of Ivermectin for Strongyloidiasis Treatment. %A Sengthong C %A Pinlaor S %A Yingklang M %A Haonon O %A Jantawong C %A Pinlaor P %A Sithithaworn P %A Hongsrichan N %J Am J Trop Med Hyg %V 110 %N 5 %D 2024 May 1 %M 38579698 %F 3.707 %R 10.4269/ajtmh.23-0645 %X Infection with Strongyloides stercoralis is often asymptomatic but can be life-threatening in immunocompromised patients, which can be prevented by ivermectin (IVM) treatment. The efficacy of IVM has been reported to have lessened over time in some regions as a consequence of prolonged use and mass treatment campaigns. Ivermectin has been used in Thailand for more than a decade; therefore, we investigated the efficacy of a single dose (200 µg/kg) of IVM against in asymptomatic strongyloidiasis in northeastern Thailand. Fecal samples were collected before and 2 weeks after treatment and were analyzed for the presence of Strongyloides using a modified agar plate culture and the formalin-ethyl acetate concentration technique. Our results showed that single-dose IVM treatment successfully eliminated S. stercoralis infection in asymptomatic individuals in the endemic area with a 100% cure rate, indicating the high efficacy of IVM treatment in strongyloidiasis in northeast Thailand.