Fig. 4

Physical fitness test results, namely (a) grip strength, (b) standing broad jump and (c) 20 m shuttle run test, among 934 Grade 4 schoolchildren, stratified by sex, age and infection status, in Port Elizabeth, South Africa, in early 2015. Note: The darker the boxplot is, the more parasite species are hosted by a child; bright boxplots represent infection-free, black boxplots represent quadruple infections; the dashed red line represents the mean