Endemic status of Trypanosoma evansi infection in a horse stable of eastern region of India--a field investigation.

Diagnosis of Trypanosoma evansi infection in a horse stable of Eastern Region of India on the basis of examination of Giemsa stained blood smears have been done. A high percentage (12.74%) of horses of this stable was found suffering from T evansi infection. This high prevalence of T evansi in horses, in this area could be considered as an alarming situation which has never been explored previously in horses of Eastern Region of India. After a period of 2 months and 18 days of treatment with quinapyramine sulphate and quinapyramine chloride, reinfection with T evansi in treated horses of this stable were noticed. Clinical signs of affected horses and possible causes of reinfection have been discussed.