Neospora caninum is a coccidian parasite related to Toxoplasma gondii. The dog is the definitive host, with sexual stages in the gut resulting in oocysts shed in faeces.
Cattle (an intermediate host species) are infected by ingesting feed contaminated by sporulated N caninum oocysts shed by dogs or by infected cattle tissues (eg infected foetal membranes), or are infected transplacentally.
The asexual proliferative stages of N caninum (including tissue cysts) cause:
Diagnosis is based on history, clinical signs, serology and histopathology. A histopathologic diagnosis is based on the detection of tissue cysts with associated necrosis and inflammation.
Days of the week test is conducted
Up to 5 days
Neospora antibody ELISA4
Clotted blood (red top tube) or lithium heparin blood (green top tube)
Batch tested weekly
Monday – Saturday3
1 Turnaround times are provided as a guide only. For specific information about your submission please contact Customer Service.
2 Confirmation testing of positives may affect turnaround time
3 Prior approval of delivery and testing on Saturday is required. Please contact Customer Service on 1800 675 623 to seek approval.
4 This test is not NATA accredited.
In view of the widespread prevalence of subclinical neosporosis in cattle in coastal NSW areas, seropositivity in an aborted cow does not confirm Neospora abortion.