ArticleParasites & vectors2017
High seroprevalance of Neospora caninum in dogs in Victoria, Australia, compared to 20 years ago.
Article in Parasites & vectors, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Seroprevalence ofAnimals : an open access journal from MDPI · 2026Article
- Serological detection ofOpen veterinary journal · 2025Article
- Molecular and serological prevalence rates of Neospora caninum infection in dogs from Jordan.Parasitology research · 2024Article
- Evidence of Australian wild deer exposure to N. caninum infection and potential implications for the maintenance of N. caninum sylvatic cycle.BMC veterinary research · 2023Article
- Active shedding of Neospora caninum detected in Australian wild canids in a nonexperimental context.Transboundary and emerging diseases · 2022Article
- Dead or Alive? A Review of Perinatal Factors That Determine Canine Neonatal Viability.Animals : an open access journal from MDPI · 2022Review
- Molecular detection of Toxoplasma gondii and Neospora caninum in rock pigeons (Columba livia) in Punjab, Pakistan.Parasitology research · 2022Article
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Authors and funding
7 authors.
Funding
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Abstract
backgroundCanids are definitive hosts of the apicomplexan parasite Neospora caninum, the leading cause of abortion in cattle worldwide. For horizontal transmission from canids to occur, oocysts of N. caninum must be shed by the definitive host into the environment of susceptible intermediate hosts such as cattle. The purpose of this study was to determine the prevalence of N. caninum in canids in Victoria, Australia's leading dairy producing state.
resultsNeospora-like oocysts were observed in 8% (18/234) of faecal samples from wild dogs, domestic dogs and red foxes from Victoria, Australia. However, none tested positive for N. caninum DNA using a quantitative PCR. In a separate sample population, blood sera from 483 domestic dogs were tested for anti-N. caninum antibodies using competitive ELISA. A subset of cELISA samples were re-tested using indirect fluorescence antibody test (IFAT). A seroprevalence of 29.8% (144/483; 95% CI: 11.7-47.8%) was calculated when using cELISA; whereas it was 32.9% (27/80; 95% CI: 15.8-51.8%) using IFAT. Potential risk factors were evaluated using univariable analyses and then assessed in separate multivariable models. Using 'aged' dogs as a reference, the seroprevalence of 'adolescent' and 'adult' dogs was 88% (P = 0.05) and 91% (P = 0.08), respectively, indicating seroprevalence increases with age. There was a 19% higher likelihood of infection in rural locations (P = 0.10) relative to urban areas. Jack Russell Terriers had a 22% higher risk of a cELISA-positive result (P = 0.05) regardless of geographical location, age or sex.
conclusionThese results demonstrate that exposure to N. caninum in domestic dogs is widespread in Victoria, although faecal oocyst shedding is infrequent. Our results indicate increased N. caninum seroprevalance status in dogs over the past two decades. The results imply that dogs get either exposed to the infected meat more frequently or that vertical dam to foetus transmission is more frequent than previously thought. Our study calls for re-evaluation of historical N. caninum seroprevalance studies, because the attitude to dog diet changes.
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