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Antibody responses of leprosy patients in Yunnan Province. Sera from leprosy patients (MB = 34 and PB = 23), healthy household contacts of MB patients (HHC = 22), pulmonary tuberculosis patients (TB = 17), and uninfected controls (NC; 10 from Yunnan and 10 from Beijing) were assessed by ELISA against ND-O-BSA and LID-1. Glycolipid reactivity was assessed by IgM binding, and protein reactivity was assessed by IgG binding, with each sample distinguished by an individual marker.
