1Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
2Department of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
3Curso de Medicina, Universidade Federal do Tocantins, Palmas, Tocantins, Brasil
4Graduate School of Health Sciences, Niigata University, Niigata, Japan
5Station of Malariology, Parasitology, and Entomology, Savannakhet Province, Lao PDR
6National Institute of Public Health, Ministry of Health, Lao PDR
7School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/