The factors associated with positive Mp1p antigenemia included skin lesions (OR=13.8, p <0.001), hepatosplenomegaly (OR=4.7, p <0.001), Hb <9% (OR=2.1, p <0.002), PLT <100 K / uL (OR=6.5, p <0.001), AST >80 IU / mL (OR=7.8, p <0.001, TCD4+ <50 cells / mm3 (OR=5.6, p <0.001).