J. Niguo and G. Puzo for gifts of LAM derived from BCG, M. fortuitum and M. smegmatis. Thanks to Dr. L. Kremer for providing LAM of M. kansasii. This study was supported by NIH/NIAID RO1 AI 072584-01-A2 to VB, the Heiser Program for Research in Leprosy and Tuberculosis postdoctoral fellowship of the New
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