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Human chimeric ELISA. Panel A: boxplots of net absorbance (expressed as percentage of reactivity of the positive reference serum) of healthy blood donors (group 1), immunocompetent patients affected by other pathologies (group 2), immunocompetent patients with confirmed VL (group 3), and HIV-VL-positive/IFAT-negative patients (group 4). Panel B: boxplots of net absorbance of 185 positive patients grouped by their reciprocal IFAT titer.
