[Eperythrozoonosis in sheep]

In 1990/91 eperythrozoonosis in the sheep was seen in our clinic for the first time. In 10 animals out of 4 flocks infection with Eperythrozoon ovis was diagnosed. Most of the animals showed a transient parasitaemia with a temporary anaemia. A chronic high grade parasitaemia and anaemia were produced in one sheep by splenectomy. This animal showed haemoglobinuria following a haemolytic attack. In a lamb a high grade chronic parasitaemia occurred spontaneously. The parasitaemia lasted for over 7 months, and the lamb eventually died.