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Fig. 2 | Parasites & Vectors

Fig. 2

From: Urine metabolites for the identification of Onchocerca volvulus infections in patients from Cameroon

Fig. 2

Principal component analysis (PCA) of non-infected and Ov-infected samples. The contents of the features (LC-MS peaks with specific m/z and retention time) were normalized to the mean of all metabolites (a, b) or to D3-NATOG (c, d). Features with P < 0.01 were used for PCA. a, c The score plots and b, d the loadings of the components PC1 and PC2. The dashed boxes in a and c indicate the thresholds used to score for infected vs. non-infected. The numbers in parentheses in the axes (a, c) indicate the contribution of the component to total variability in percent

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