Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil
Luciana de Oliveira,Elaine Maria Seles Dorneles,Ana Lourdes Arrais de Alencar Mota,Vitor Salvador Picão Gonçalves,José Soares Ferreira Neto,Fernando Ferreira,Ricardo Augusto Dias,Evelise Oliveira Telles,José Henrique de Hildebrand Grisi Filho,Marcos Bryan Heinemann,Marcos Amaku,Andrey Pereira Lage +11 more
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TLDR
A significant reduction in the prevalence of properties with bovine brucellosis is demonstrated in Minas Gerais, with properties with higher numbers of cows at higher risk for infection.Abstract:
This cross-sectional study was conducted in the state of Minas Gerais, Brazil in 2011 to estimate the seroprevalence of bovine brucellosis (Brucella abortus) in properties and cattle, and to identify potential infection risk factors for herds with cows of reproductive age. The state was divided into seven regions: 1. Noroeste, Norte and Nordeste; 2. Leste; 3. Central; 4. Zona da Mata; 5. Sul and Sudoeste; 6. Alto Paranaiba; and 7. Triângulo Mineiro. Random, two-stage sampling was performed of both properties and cattle from each property. Blood samples were collected from 18,990 cows of reproductive age from 2,185 properties. The serologic tests used for the detection of anti-B. abortus antibodies included the buffered, acidified plate antigen test, as a screening test, with the 2-mercaptoethanol reduction, test as a confirmatory test, as recommended by the Programa Nacional de Controle e Erradicacao da Brucelose e Tuberculose Animal - PNCEBT (National Program for the Control and Eradication of Animal Brucellosis and Tuberculosis). The seroprevalence of bovine brucellosis on the surveyed properties and in cattle were 3.59% (95% confidence interval [CI]: 2.76 4.42%) and 0.81% (95% CI: 0.05-1.10%), respectively. Multiple logistic regression analysis identified the total number of cows in the property as a risk factor for the presence of anti-B. abortus antibodies, with an odds ratio (OR) of 1.93 (95% CI: 1.12 - 3.34) for herds with 30 to 210 cows and 7.81 (95% CI: 3.72-16.38) for those with more than 210 cows, relative to the risk in herds with less than 30 cows, the base category. While these results demonstrate a significant reduction in the prevalence of properties with bovine brucellosis, the disease is still present in Minas Gerais, with properties with higher numbers of cows at higher risk for infection.read more
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Journal ArticleDOI
Epidemiological situation of bovine brucellosis in the State of Paraiba, Brazil
Inácio José Clementino,Ricardo Augusto Dias,Marcos Amaku,Fernando Ferreira,Evelise Oliveira Telles,Marcos Bryan Heinemann,Vitor Salvador Picão Gonçalves,José Henrique Hildebrand Grisi-Filho,José Soares Ferreira Neto,Clebert José Alves,Carolina de Sousa Américo Batista Santos,Sérgio Santos de Azevedo +11 more
TL;DR: This study was performed to characterize the epidemiological status of brucellosis in the State of Paraiba, Brazil and found Zebuine as the predominant breed.
Journal ArticleDOI
Effect of vaccination in lowering the prevalence of bovine brucellosis in the State of Mato Grosso, Brazil
Janice Elena Ioris Barddal,Jociane Cristina Quixabeira-Santos,Isabela Ferreira Lopes,José Soares Ferreira Neto,Fernando Ferreira,Marcos Amaku,Ricardo Augusto Dias,Evelise Oliveira Telles,José Henrique Hildebrand Grisi-Filho,Marcos Bryan Heinemann,Vitor Salvador Picão Gonçalves,Daniel Moura de Aguiar +11 more
TL;DR: There remains a high prevalence of infected herds and animals throughout the state of Mato Grosso, and the use of non-inducing antibodies vaccine should be encouraged, especially in the Pantanal region where the management of the animals is complicated by the flood and ebb cycle.
Analysis of 15 years of the National Program for the Control and Eradication of Animal Brucellosis and Tuberculosis, Brazil Avaliação de 15 anos do Programa Nacional de Controle e Erradicação da Brucelose e Tuberculose, Brasil
José Soares Ferreira Neto,Gabriela Bicca da Silveira,Barbara Medeiros Rosa,Vitor Salvador,Picão Gonçalves,José Henrique Hildebrand Grisi-Filho,Marcos Amaku,Ricardo Augusto Dias,Fernando Ferreira,Marcos Bryan Heinemann,Evelise Oliveira Telles,Andrey Pereira Lage +11 more
TL;DR: Progress has been limited by the difficulty in engaging the beef and dairy productive chains as true partners in the process, and a large volume of high-quality epidemiological data were produced, which will allow the country to move forward more rationally and safely in combating these two diseases.
Dissertation
Estudo epidemiológico da brucelose em fêmeas bovinas adultas da regional Rio das Antas, Goiás
TL;DR: Pode-se afirmar that a brucelose bovina em rebanhos e animais e considerada alta na regiao avaliada, com ampla distribuicao espacial, dispersa em todo o territorio estudado e em todos os sistemas de producao.
Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program Controle da brucelose bovina no estado de São Paulo, Brasil: resultados após dez anos do programa de vacinação
Ricardo Augusto Dias,Ana Paula Cunha Belchior,Rodrigo de Souza Ferreira,Rita Coelho Gonçalves,Paola da Rocha Sousa,Arianne Mastrangeli,Amici Santos,Marcos Amaku,Fernando Ferreira,Evelise Oliveira Telles,José Henrique,Vitor Salvador,José Soares Ferreira Neto +12 more
TL;DR: The Sao Paulo State should conduct systematic vaccination coverage of above 80% of the eligible heifers with the S19 strain vaccine annually and emphatically use RB51 strain vaccine in females above 8 months of age not vaccinated with S 19 strain vaccine.