Cerebellar ataxia as a possible complication of babesiosis in two dogs.

A 6-month-old Miniature Doberman Pinscher was presented with inappetance and cerebellar signs. Babesia canis organisms were found on a capillary bloodsmear. The cerebellar signs resolved rapidly following treatment with diminazene aceturate. A 7-month-old Siberian Husky developed cerebellar signs, blindness and quadriparesis 9 d after presentation with clinical signs typical of uncomplicated canine babesiosis. The dog responded favourably to treatment with prednisolone. Both acute and delayed cerebellar ataxia have been associated with malaria in humans. The clinical signs shown by these dogs were similar to those reported for malaria in humans. Cerebellar ataxia should be considered a possible complication of canine babesiosis.