1. Medical Entomology, Centre for Disease Control, Northern Territory Department of Health, Darwin, Northern Territory, Australia.
2. Disease Surveillance, Centre for Disease Control, Northern Territory Department of Health, Darwin, Northern Territory, Australia.
3. National Centre for Epidemiology and Population Health, Australian National University, Australia.
4. Berrimah Veterinary Laboratories, Department of Primary Industry and Fisheries, Darwin, Northern Territory, Australia.
5. Flora and Fauna Division, Department of Land Resource Management, Palmerston, Northern Territory, Australia.