1. Department of Medical Parasitology and Entomology, Weill Bugando University College of Health Sciences, P.O. Box 1464, Mwanza, Tanzania
2. Weill Bugando University College of Health Sciences, P.O. Box 1464, Mwanza, Tanzania
3. Division of Livestock and Human Disease Vector Control, Tropical Pesticides Research Institute, P.O. Box 3024, Arusha, Tanzania
4. Pest Management Centre, Sokoine University of Agriculture, P.O. Box 3110, Morogoro, Tanzania
5. Department of Community Health, School of Medicine, Federal University of Ceará, 60430-140 Fortaleza, Brazil
6. Anton Breinl Centre for Tropical Medicine and Public Health, School of Public Health, Tropical Medicine & Rehabilitation Sciences, James Cook University, Townsville QLD 4811, Australia