Ehrlichiosis is a disease caused by Ehrlichiae bacteria. The disease is transmitted by ticks. The disease occurs in the following clinical forms: monocytic ehrlichiosis, granulocytic ehrlichiosis and sennetsu fever. Symptoms of ehrlichiosis are non-specific, and include flu-like symptoms, cutaneous manifestations (erythema), enlargement of the lymphatic nodules, liver and spleen. Involvement of the gastrointestinal tract is common in the patients. Symptoms are accompanied by alteration seen in peripheral blood (leukopenia with lymphocytopenia, thrombocytopenia). Antibiotics are used in management of ehrlichiosis.