Figure 2.

Intestinal helminth infections in study participants at recruitment. Stool parasitology was graded as strongly positive (++) if an average of more than one helminth egg was seen per microscopy field, weakly positive (+) if the infection was present at lower egg density, and negative (-) if no eggs were seen. For the co-infection with > 1 helminth bar, the highest helminth egg concentration data for either helminth species are shown. Five stool samples were excluded from this analysis, because they were sufficient only for helminth egg detection but not for quantification.