A clinical case report of sub-clinical theileriosis with characteristic Giemsa-stained blood smear and hematological findings

Abstract

Bovine theileriosis, a tick-borne parasitic disease, causes significant economic losses in cattle farming. This case report documents the clinical manifestations, diagnostic findings, and therapeutic management of theileriosis in a crossbred bovine at 8 months of gestation, which presented with loss of appetite, enlargement of lymph nodes, reduced water intake, no defecation. On physical examination, normal temperature, pale mucous membranes, and cessation of ruminal motility. Giemsa-stained peripheral blood smears revealed characteristic parasitic inclusions within white blood cells and red blood cells, confirming Theileria infection. Hematological findings showed hemoglobin (5.2 g/dl), red blood cells (3.6 millions/?l), white blood cell count (19,400/?l) and the differential leucocyte count shows Neutrophils (18%), Lymphocytes (78%) and Eosinophils (4%).