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Distribution of true positives in antibodies of 71 TST-positive monkeys. Four animals (numbered 3, 10, 27, and 28) were seropositive to all antigens, two animals (numbered 36 and 69) were seronegative to all antigens, and two animals (numbered 12 and 38) were seropositive for only one antigen (Ag38kDa and Ag14kDa, respectively). Forty-six out of 71 animals were seropositive for at least six antigens.
