1. Emory Vaccine Center
2. 3M Pharmaceuticals, St. Paul, MN 55144
3. Section of Immunobiology, Yale University School of Medicine, New Haven, CT 06520
4. Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
5. Department of Pathology, Emory University, Atlanta, GA 30329