Affiliation: | (1) Division of Clinical Immunology and Rheumatology, Department of Medicine, The University of Alabama at Birmingham, 35294 Birmingham, Alabama, USA;(2) Department of Microbiology, The University of Alabama at Birmingham, 35294 Birmingham, Alabama, USA;(3) Howard Hughes Medical Institute, University of Chicago, Billings Hospital, 5841 S. Maryland Avenue, S-508, 60637 Chicago, Illinois, USA;(4) WHO Centre, Breidenbacherstrasse 13, W-6500 Mainz, Federal Republic of Germany |