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  • Title: Pathological changes in male genitalia of cattle infected with Trypanosoma vivax and Trypanosoma congolense.
    Author: Sekoni VO, Njoku CO, Kumi-Diaka J, Saror DI.
    Journal: Br Vet J; 1990; 146(2):175-80. PubMed ID: 2331595.
    Abstract:
    Samples for histological studies were taken from the genitalia of 14 bulls (five infected with Trypanosoma vivax, five with T. congolense and four uninfected control animals), slaughtered 12, 22 or 30 weeks post-infection. Infection with Y58 strain of T. vivax and strain 2295 of T. congolense caused various grades of lesions in the male reproductive organs, especially the testes and epididymides. T. congolense produced more severe degenerative changes than T. vivax. It is concluded that in long-standing cases, the result of trypanosome infection is either serious infertility or even sterility.
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