Abstract
Canine hepatazoonosis is a disease of dogs reported from Asia, Africa, Middle East, United States and also from Southern Europe. In many cases, Hepatazoon canis has been found in the blood of healthy dogs and early reports only rarely incriminated it as a pathogen. However, later reports emphasised the pathogenicity of the organisms, characterised by muscle pain, stiffness, periosteal new bone formation, fever and marked leucocytosis. Nervous signs simulating canine distemper were also reported in canine hepatazoonosis; but the organisms were seldom isolated from the cerebrospinal fluid (CSF). A case of canine hepatazoonosis with neurological signs and demonstration of H. canis in the neutrophils in the CSF is presented.