1. Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, United States
2. Department of Microbiology and Immunology, Weill Cornell Medical College, New York, New York 10021, United States
3. Discovery Research, Merck & Company, Inc., 770 Sumneytown Pike, West Point, Pennsylvania 19486, United States
4. Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town 7935, South Africa