Isoenzyme characterisation of 15 stocks of Trypanosoma evansi isolated from camels in the Sudan.

Fifteen stocks of T. evansi isolated in Sudan were compared using isoenzyme banding patterns. Differences between the stocks were found but overall they formed a homogeneous group. The results were similar to those obtained for other stocks of T. evansiisolated from Kenya, W. Africa, S. America and Kuwait and indicate that little genetic variation occurs in T. evansi over its geographical range. This low variation may have important implications in the development of new methods of controlling trypanosomiasis caused by T. evansi.