1. Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
2. Mathematical and Economic Modelling (MAEMOD), Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
3. Faculty of Science and Technology, Rajabhat Suratthani University, Surat Thani, Thailand
4. Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand