title: The penetrative ability of sleeping-sickness trypanosomes.
mesh_terms: D000818:Animals; D004463:Ecology; D007422:Intestines / Q000469:parasitology / Q000648:ultrastructure; D008854:Microscopy, Electron; D014346:Trypanosoma brucei brucei / Q000502:physiology* / Q000648:ultrastructure; D014370:Tsetse Flies / Q000469:parasitology* / Q000648:ultrastructure