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Effect of in vitro CCL21 exposure on trypanosome motility. Monomorphic T brucei Lister 427 trypanosomes were incubated in medium containing CCL21 for 2 h and the motility of 90 individual parasites recorded by live cell imaging. Imaris software was then used to determine the effects of treatment on trypanosome speed, as well as their velocities in the X and Y axes. Each point represents data from the analysis of individual trypanosomes, and the horizontal bar represents the mean ± SD
