Fig. 1From: Assessment of multiplex Onchocerca volvulus peptide ELISA in non-endemic tropical regionsCorrelation between spot intensity as measured in the multiplex ELISA and absorbance previously measured in singleplex ELISA for OvMP-1 (a), OvMP-23 (b) and OvNMP-48 (c). Regression lines were calculated using least squares fit. Spot intensity cut-offs are indicated by the horizontal dashed lines; absorbance cut-offs are indicated by the vertical dashed lines [12, 13]Back to article page