Distribution of Trypanosoma congolense in infected multimammate rats ( Mastomys coucha): light and electron microscopical studies

In an attempt to determine whether Trypanosoma congolense occurs both within and outside the blood vessels in an infected animal host, multimammate rats ( Mastomys coucha) were infected with T. congolense and samples from spleen, lymph nodes, bone marrow, liver, kidney, lungs, brain, heart, intestin...

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Bibliographic Details
Published in:Veterinary parasitology 2002-05, Vol.105 (4), p.327-336
Main Authors: Ojok, L., Kaeufer-Weiss, I., Weiss, E.
Format: Article
Language:English
Subjects:
Animals
Electron microscopy
Microscopy, Electron
Multimammate rat ( Mastomys coucha)
Muridae
Pathogenesis
Rats
Rodent Diseases - parasitology
Rodent Diseases - pathology
Trypanosoma congolense
Trypanosoma congolense - growth & development
Trypanosoma congolense - ultrastructure
Trypanosomiasis, African - blood
Trypanosomiasis, African - parasitology
Trypanosomiasis, African - pathology
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Summary:In an attempt to determine whether Trypanosoma congolense occurs both within and outside the blood vessels in an infected animal host, multimammate rats ( Mastomys coucha) were infected with T. congolense and samples from spleen, lymph nodes, bone marrow, liver, kidney, lungs, brain, heart, intestines, ovaries and testes were collected. The tissue samples were fixed and processed for light and electron microscopical examination. In all the tissues examined, trypanosomes were found only within the lumen of large and small blood vessels, capillaries and sinuses. It is concluded that following entry into the blood circulation after intra-peritoneal infection of M. coucha, T. congolense remains restricted to the bloodstream.
ISSN:0304-4017
1873-2550
DOI:10.1016/S0304-4017(02)00017-1