Joesoef, Arbain; Health Ecology Research Centre, National Institute of Health Research and Development, Ministry of Health, Jakarta, Indonesia; Lifwarni, Lifwarni; Sub-directorate Filariasis & Schistosomiasis, Communicable Disease Control, Ministry of Health, Jakarta, Indonesia; Wardiyo, Wardiyo; Sub-directorate Filariasis & Schistosomiasis, Communicable Disease Control, Ministry of Health, Jakarta, Indonesia; Maneoba, L.; Province Health Office, Kendari, Southeast Sulawesi Province, Indonesia; Bahang, Z.; Sub-directorate Entomology, Communicable Disease Control, Ministry of Health, Jakarta, Indonesia; Kirnowardoyo, S.; Sub-directorate Entomology, Communicable Disease Control, Ministry of Health, Jakarta, Indonesia; Arwati, Arwati; Directorate of Vector Borne Disease Control, CDC, Ministry of Health, Jakarta, Indonesia; Liat, Lim Boo; WHO/Vector Biology and Control Research Unit-2, P.O. Box 302, Jakarta, Indonesia