1. KwaZulu-Natal Research Institute for TB and HIV (K-RITH); Nelson R. Mandela School of Medicine; 719 Umbilo Road Durban 4001 South Africa
2. Brigham and Women's Hospital, Harvard Medical School; 75 Francis Street Boston MA 02115
3. Johns Hopkins School of Medicine; The Center for TB Research; 1550 Orleans St., CRBII, Room 103 Baltimore MD 21287