1. Department of Host-Defense Biochemistry, Institute of Tropical Medicine; Nagasaki University; Nagasaki Nagasaki 852-8523 Japan
2. Department of Pediatrics; Indiana University; Indianapolis IN U.S.A.
3. Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Blood Supply Organization Sanguine, and Laboratory of Experimental and Clinical Immunology, Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
4. Section of Bacterial Infection, Institute of Medical Science; The University of Tokyo; Minato-ku Tokyo 108-8639 Japan
5. Laboratory of Host Defenses; National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda MD U.S.A.