1. Faculty of Tropical Medicine, University of Mahidol, Bangkok 10400, Thailand
2. Department of Helminthology, Faculty of Veterinary Technology, Kasetsart University, Bangkok 10900, Thailand
3. Division of Vector-Borne Diseases, Department of Disease Control, Ministry of Public Health, Thailand
4. LPED, IRD – Aix Marseille Université, 3 Place Victor Hugo, 13331 Marseille, France.
5. MIVEGEC, CNRS – IRD – Montpellier Université,911 Avenue Agropolis, 34394 Montpellier, France
6. Saen Thong Health Promoting Hospital, Tha Wang Pha, Nan, Thailand