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Developmental cycle of Trypanosoma brucei. Diagram illustrating the development cycle of Trypanosoma brucei in the mammalian and tsetse fly hosts. The transition between the long trypomastigote found in the proventriculus and the short epimastigote that invades the salivary glands is an asymmetric division [1, 2, 4]. Line drawings traced from fixed Giemsa-stained cells.
