1. Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology
2. Animal Reproduction and Biotechnology Laboratory, Equine Center, Colorado State University, Fort Collins, Colorado 80523
3. Department of Microbiology and Parasitology, The University of Queensland, St. Lucia, Queensland, Australia 4072
4. Division of Vector-Borne Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado 80522
5. Office of the Surgeon General, United States Air Force, Washington, D.C. 20332