1. Virology Division, US Army Medical Research Institute of Infectious Disease , Fort Detrick, Maryland , USA
2. Department of Arbovirology, Medical Research Council/Uganda Viral Research Institute , Entebbe , Uganda
3. The Geneva Foundation , Tacoma, Washington , USA
4. Diagnostic Systems Division, US Army Medical Research Institute of Infectious Disease , Fort Detrick, Maryland , USA
5. Mapp Biopharmaceutical , San Diego, California , USA
6. London School of Hygiene & Tropical Medicine Uganda Research Unit , Entebbe , Uganda