1. Centers for Disease Control and Prevention, Viral Special Pathogens Branch, 1600 Clifton Rd. NE, Atlanta, Georgia 30333, USA
2. Uganda Virus Research Institute, PO Box 49, Wilson Rd. and Nakiwago Rd., Entebbe, Uganda
3. Centers for Disease Control and Prevention, Viral Special Pathogens Branch, PO Box 49, Wilson Rd. and Nakiwago Rd., Entebbe, Uganda
4. College of Veterinary Medicine, University of Georgia, 501 D. W. Brooks Drive, Athens, Georgia 30602, USA
5. Department of Biology, Bucknell University, 1 Dent Drive, Lewisburg, Pennsylvania 17837, USA
6. Uganda Ministry of Health, PO Box 7272, Plot 6 Lourdel Rd., Nakasero, Kampala, Uganda