Occurrence of anti-Neospora caninum antibodies in cattle in the dairy farming region of the state of Piauí, Brazil

Oliveira, Raylson Pereira de; Soares, Nínivy Marques; Silva, José Givanildo da; Ribeiro-Andrade, Müller; Lira, Nair Silva Cavalcanti de; Farias, Márcia Paula Oliveira; Mota, Rinaldo Aparecido

doi:10.1590/s1984-296120180046

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…None of the dogs younger than one year old had antibodies against N. caninum, and seven of the nine positive dogs were older than eight years of age, thus indicating, in the same way shown earlier regarding T. gondii, that the prevalence increased with increasing age of the animals. Other studies carried out in Brazil and in other countries have also observed higher prevalence among older animals (Andreotti et al, 2004;Oliveira et al, 2004;Capelli et al, 2004).…”

Section: Discussionmentioning

confidence: 67%

Toxoplasma gondii and Neospora caninum antibody seroprevalence and risk factors among dogs treated at Public Veterinary Hospitals in São Paulo, Brazil

Santos,

Soares,

Santos

et al. 2023

Rev. Bras. Parasitol. Vet.

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Dogs can be infected by Toxoplasma gondii and Neospora caninum, for which they function, respectively, as intermediate, and definitive hosts. In the present study seroprevalence against T. gondii and N. caninum antibodies, were determined by indirect fluorescent antibody test (cut off of 16 and 50, respectively), in dogs that were treated at public veterinary hospitals in the metropolitan region of São Paulo and risk factors were identified. Out of the 1,194 samples 125 (10.5%; 95% CI: 8.8-12.3%) were positive for T. gondii and 9 (0.75%, 95% CI: 0.34-1.4%) for N. caninum. For T. gondii, statistical differences were observed between the proportions of positive dogs and different zones of the municipality (p = 0.025), and age (p = 0.02), higher among older dogs. The keepers were invited to answer an epidemiological questionnaire to analyze risk factors, and 471 (39.4%) agreed to be interviewed, and among their dogs 65 (13.8%) were T. gondii seropositive. Age group above 8 years (OR = 3.63; 95% CI: 1.08-12.23) was a risk factor and having a defined breed (OR = 0.49; 95% CI: 0.25-0.96) was a protective factor for T. gondii infection. Because of the low number of dogs positive for N. caninum, risk factors for this coccidium were not determined.

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Section: Discussionmentioning

confidence: 67%

Toxoplasma gondii and Neospora caninum antibody seroprevalence and risk factors among dogs treated at Public Veterinary Hospitals in São Paulo, Brazil

Santos,

Soares,

Santos

et al. 2023

Rev. Bras. Parasitol. Vet.

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Prevalência de anticorpos anti-Neospora caninum em vacas leiteiras procedentes da agricultura familiar no estado de Pernambuco

Franca¹,

Alcântara

Oliveira

et al. 2021

Med. Vet. (UFRPE)

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Objetivou-se com este estudo determinar a prevalência de anticorpos anti-Neospora caninum e analisar os fatores de risco associados à infecção em vacas leiteiras da agricultura familiar na região Intermediária de Caruaru, estado de Pernambuco. Foram coletadas amostras de sangue de 341 vacas leiteiras, procedentes de 25 propriedades rurais, em 16 municípios. As amostras obtidas foram submetidas à técnica de Reação de Imunofluorescência Indireta (RIFI). Para a análise dos fatores de risco foi aplicado um questionário investigativo objetivo sobre o manejo higiênico-sanitário e reprodutivo. Os dados foram analisados por regressão logística, considerando como variável dependente o resultado sorológico. A prevalência de anticorpos IgG anti-N. caninum foi 18,2% (62/341) em vacas leiteiras, com 80% (20/25) de propriedades com animais positivos. Embora este estudo não tenha mostrado evidências de que o número de cães estava associado a altos níveis de anticorpos IgG anti-N. caninum, uma maior prevalência foi observada naquelas propriedades que apresentavam cães em contato com as vacas leiteiras (20,1% - 48/238), carcaças jogadas no próprio campo sem nenhum cuidado higiênico-sanitário (28,9% - 47/225) e não realizavam quarentena (19,7%- 56/284). Esses resultados evidenciam que vacas leiteiras da região Intermediária de Caruaru estão expostas a N. caninum.

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Occurrence of anti-Neospora caninum antibodies in cattle in the dairy farming region of the state of Piauí, Brazil

Cited by 2 publications

References 19 publications

Toxoplasma gondii and Neospora caninum antibody seroprevalence and risk factors among dogs treated at Public Veterinary Hospitals in São Paulo, Brazil

Toxoplasma gondii and Neospora caninum antibody seroprevalence and risk factors among dogs treated at Public Veterinary Hospitals in São Paulo, Brazil

Prevalência de anticorpos anti-Neospora caninum em vacas leiteiras procedentes da agricultura familiar no estado de Pernambuco

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