Abstract
Trypanosoma (Herpetosoma) leeuwenhoeki, originally described in Panamanian sloths, was isolated from Didelphis marsupialis (Marsupialia) and Choloepus hoffmanni (Edentata) inhabiting the Pacific coast of Colombia. Trypanosomes were characterized by their large blood forms (total length 51-53 microns), poor infectivity for mice, and lack of development in Rhodnius prolixus. Isoenzyme studies, with either strains or clones, revealed homogeneous profiles clearly distinct from Trypanosoma cruzi and Trypanosoma rangeli reference strains. The present report extends the geographical distribution of T. leeuwenhoeki to South America and broadens its known host range to another order of mammals.
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