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. 2022 Jan 25;16(1):e0010126. doi: 10.1371/journal.pntd.0010126

Fig 1. A comparison between the performance of the IgG and IgG4 based ELISA assays using raw optical density (OD) measurements and signal-to-noise ratio (S/N) when applied to sera from healthy controls, Strongyloides stercoralis (Ss) infected (documented larvae in stool), and those with helminth infections other than Ss.

Fig 1

The dashed line represents the cutoff of the respective tests calculated from the cumulative data. The data points above the dotted line are considered positive and those below are considered negative. (HV = Healthy Volunteers; SS+ = Ss larvae in stool; OH = patients infected with helminths other than Ss).