An Epizootic of Theileriosis in Cattle Characterised By a Nervous Syndrome, In Ngorongoro District, Tanzania

Authors

  • G.R.M. Nsengwa Veterinary Investigation Centre. P.O. Box 1068, Arusha, Tanzania

Keywords:

Cowdriosis, Cowdria ruminantium, cerebral theileriosis

Abstract

Brain and heart samples submitted for examination from cattle dying of a nervous syndrome in  Ngorongoro District,  and suspected  to  be  heart  water,  revealed  numerous Theileria schizonts in crush smears of the brain cortex stained with Giemsa's stain. No evidence of Cowdria ruminantium was found in the smears. "Turning sickness" which is a form of cerebral theileriosis was thus confirmed, and it is speculated that, this was likely due to the breakdown in immunity in these partially immune animals due to severe reinfection challenge. T. mutans can also be implicated. Tick control is emphasized to prevent future outbreaks.

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Published

30-06-1993

How to Cite

Nsengwa, G. (1993) “An Epizootic of Theileriosis in Cattle Characterised By a Nervous Syndrome, In Ngorongoro District, Tanzania”, Tanzania Veterinary Journal, 13(2), pp. 41–44. Available at: https://tvj.sua.ac.tz/vet2/index.php/TVJ/article/view/511 (Accessed: 21 April 2026).

Issue

Vol. 13 No. 2 (1993)

Section

CASE REPORTS

License

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