Distribution Pattern of Trypanosoma Lewisi in (Rattus Norvegicus) in Egypt

Eman Sayed Mohammed
2018 Biomedical Journal of Scientific & Technical Research  
Trypanosoma lewisi is an extracellular hemoflagellate protozon of rats. T. lewisi was not considered a pathogen for human, However, cases of human trypanosomiasis caused by T. lewisi have been reported Materials and Methods: 117 rats were trapped around human population in Abo Rawash, Giza, Egypt. Thin and thick blood films were prepared and examined microscopically. Experimental infections of 8 white rats were done for confirmation of infection and assessment of parasitaemia. Results: 19
more » ... . Results: 19 (15.8%) out of 117 Rattus norvegicus were found to be infected with T. lewisi. Experimental infection of 8 white rats confirmed the infection with Trypanosoma lewisi and showed boost in parasitaemia till the 9th day then the level of trypanosomes in blood was constant. Conclusion: Trypanosoma lewisi is prevalent in examined Rattus norvegicus which reverse that the theory of high immunity of Rattus norvegicus will prevent infection with Trypanosma lewisi.
doi:10.26717/bjstr.2018.08.001688 fatcat:i5txxukfzbajlbwqcsuae6jhju