(A) Maximum intensity projection of video acquired 10 min after inoculation of P. falciparum sporozoites visualizes trajectories of parasites, engaging with CD31-labeled vascular endothelia (magenta). Scale bar, 50 μm. See movie EV9. (B) Displacement of sporozoites 5 to 60 min after inoculation. Data is displayed in box and whisker plots with whiskers showing the 10 to 90 percentiles and values below and above the whiskers shown individually. Horizontal lines show the median at each time point. Percentage values indicate the fraction of tracks displacing over 75 microns. (C) Apparent speed of sporozoites 5 to 60 min after inoculation. Data is displayed in box and whisker plots with whiskers showing 10 to 90 percentiles and values below and above the whiskers shown individually. Horizontal lines show the median speed at each time point. For panels B-C, data shown originates from the analysis of 3-4 videos per time point and a varying number of tracks were processed for each time point after inoculation: 5 min (157 tracks), 10 min (568 tracks), 20 min (286 tracks), 30 min (171 tracks), 60 min (101 tracks). No motile sporozoites were observed 120 min after inoculation. (D) Proportion of motile and non-motile sporozoites was manually counted and is displayed as percentage of sporozoites observed 5 min after inoculation. The data shown was obtained from one complete imaging session over 120 min after intradermal injection of sporozoites. 