Neospora caninum in cattle – a literature review

Paula Syrjälä


Neospora caninum is a common important coccidian parasite, which causes bovine abortions worldwide. Cattle are mostly infected transplacentally. Infection from feed or water contaminated by dog faeces is also possible. Neospora occur also in many wildlife species, but their role in the epidemiology of bovine infections is poorly known. The clinical outcome of neosporosis in a herd vary and the cause for occasional abortion storms is not known. There is no effective treatment and vaccination does not prevent vertical transmission. Prevention is based on culling seropositive animals and their progeny.