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IL-2, TNF-α, and IFN-γ levels in serum samples from patients infected with different Leishmania species and in noninfected control. Cytokine levels (pg/mL) were calculated for each serum sample. Means (horizontal lines) are shown for each group. Ctrl: noninfected controls; L. g: Leishmania guyanensis; L. n: L. naiffi; L. a: L. amazonensis.
