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Seroepidemiology of Toxoplasma gondii in Dairy Cows in Southeastern Brazil: Seropositive Cows on All Farms Investigated.
Guimarães, Antônio Marcos; Bruhn, Fábio Raphael Pascoti; da Rocha, Christiane Maria Barcellos Magalhães; de Araújo, Thatiane Helena; Mesquita, Cristiane Aparecida Moreira.
Afiliação
  • Guimarães AM; Department of Veterinary Medicine, Federal University of Lavras, Lavras, MG, Brazil. amg@ufla.br.
  • Bruhn FRP; Preventive Veterinary Department, Zoonoses Control Center, Faculty of Veterinary Medicine, Federal University of Pelotas, Capão do Leão, RS, Brazil.
  • da Rocha CMBM; Department of Veterinary Medicine, Federal University of Lavras, Lavras, MG, Brazil.
  • de Araújo TH; , Lavras, MG, Brazil.
  • Mesquita CAM; Postgraduate Program in Veterinary Science, Federal University of Lavras, Lavras, MG, Brazil.
Acta Parasitol ; 65(3): 628-635, 2020 Sep.
Article em En | MEDLINE | ID: mdl-32207057
PURPOSE: This study aimed to estimate the prevalence and identify the risk factors associated with the higher in-herd T. gondii seroprevalence in dairy cows in 37 farms in southern Minas Gerais, Southeastern Brazil. METHODS: Serum samples from 1,105 dairy cows were subjected to an indirect fluorescence antibody test (IFAT 1:64) for anti-T. gondii IgG. The association existing between possible risk factors at the herd level and the seroprevalence were verified through Generalized Estimating Equation (GEE) multiple logistic regression models. RESULTS: Anti-T. gondii antibodies were observed in 31.4% of the cows (347; 95% CI= 28.7-34.2) and on 100% of the farms (37; 95% CI= 90.6-100.0%), indicating that all properties possessed at least one seropositive animal. For univariate analysis, herds with seroprevalence were categorized as greater and less than 30% as the outcome. The "breeding of Holstein Friesian cows" (p= 0.016, OR= 6.667, 95% CI= 1.500-29.628) and in an "intensive system" (p= 0.013, OR= 6.120, 95% CI= 1.394-26.876) increased the chance of the herd seroprevalence being greater than 30% by approximately six-fold. However, these variables did not exhibit a significant association (p >0.05) in the Generalized Estimating Equations (GEE) logistic regression model. CONCLUSIONS: The results demonstrate that T. gondii infection is widespread among dairy cows in the south of Minas Gerais, with a wide environmental dispersion of the parasite on farms in this region.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bovinos / Anticorpos Antiprotozoários / Doenças dos Bovinos / Toxoplasmose Animal Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Acta Parasitol Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Bovinos / Anticorpos Antiprotozoários / Doenças dos Bovinos / Toxoplasmose Animal Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Acta Parasitol Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça