Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27226 |
Resumo: | 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 Paranaíba; 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 Erradicação 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. |
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Semina. Ciências Agrárias (Online) |
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Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, BrazilSoroprevalência e fatores de risco para brucelose bovina no Estado de Minas Gerais, BrasilBovineBrucella abortusPrevalenceRisk factorsMinas GeraisBrazil.BovinoBrucella abortusPrevalênciaFatores de riscoMinas GeraisBrasil.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 Paranaíba; 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 Erradicação 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.Um estudo transversal foi realizado no estado de Minas Gerais, Brasil, em 2011, para estimar a soroprevalência da brucelose bovina (Brucella abortus) em propriedades e bovinos e identificar possíveis fatores de risco para a infecção nos rebanhos com fêmeas em idade reprodutiva. O estado foi regionalizado em sete estratos: 1. Regiões Noroeste, Norte e Nordeste; 2. Região Leste; 3. Região Central; 4. Região da Zona da Mata; 5. Regiões Sul e Sudoeste; 6. Região do Alto Paranaíba; 7. Região do Triângulo Mineiro, e a amostragem foi aleatória em dois estágios: de propriedades e, posteriormente, de bovinos em cada uma das mesmas. Foram coletadas amostras de sangue de 18.990 fêmeas em idade reprodutiva em 2.185 propriedades. Os testes sorológicos utilizados na detecção de anticorpos contra B. abortus foram o teste do antígeno acidificado tamponado e, como confirmatório, o teste de redução do 2-Mercaptoetanol, rotina preconizada pelo Programa Nacional de Controle e Erradicação da Brucelose e Tuberculose Animal (PNCEBT). O resultado da soroprevalência da brucelose bovina em propriedades e animais foi de 3.59% (IC 95%: 2,76–4,42%) e 0,81% (IC 95%: 0,05–1,10%), respectivamente. A análise de regressão logística multipla revelou como fatores de risco para a presença da infecção o número de fêmeas na propriedade com Odds Ratio (OR) de 1,93 (IC 95%: 1,12-3,34) para os rebanhos de 30 a 210 fêmeas e de 7,81 (IC 95%: 3,72-16,38) para aqueles com mais de 210 fêmeas, sempre em comparação ao risco dos rebanhos com menos de 30 fêmeas. Os resultados indicam que, apesar da redução na prevalência de focos na última década, a brucelose bovina ainda se encontra presente em Minas Gerais, havendo um maior risco de infecção em propriedades com maior número de animais.UEL2016-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2722610.5433/1679-0359.2016v37n5Supl2p3449Semina: Ciências Agrárias; Vol. 37 No. 5Supl2 (2016); 3449-3466Semina: Ciências Agrárias; v. 37 n. 5Supl2 (2016); 3449-34661679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27226/19917Copyright (c) 2016 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessOliveira, Luciana Faria deDorneles, Elaine Maria SelesMota, Ana Lourdes Arrais de AlencarGonçalves, Vitor Salvador PicãoFerreira Neto, José SoaresFerreira, FernandoDias, Ricardo AugustoTelles, Evelise OliveiraGrisi-Filho, José Henrique HildebrandHeinemann, Marcos BryanAmaku, MarcosLage, Andrey Pereira2022-11-29T16:42:24Zoai:ojs.pkp.sfu.ca:article/27226Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T16:42:24Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil Soroprevalência e fatores de risco para brucelose bovina no Estado de Minas Gerais, Brasil |
title |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
spellingShingle |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil Oliveira, Luciana Faria de Bovine Brucella abortus Prevalence Risk factors Minas Gerais Brazil. Bovino Brucella abortus Prevalência Fatores de risco Minas Gerais Brasil. |
title_short |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
title_full |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
title_fullStr |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
title_full_unstemmed |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
title_sort |
Seroprevalence and risk factors for bovine brucellosis in Minas Gerais State, Brazil |
author |
Oliveira, Luciana Faria de |
author_facet |
Oliveira, Luciana Faria de Dorneles, Elaine Maria Seles Mota, Ana Lourdes Arrais de Alencar Gonçalves, Vitor Salvador Picão Ferreira Neto, José Soares Ferreira, Fernando Dias, Ricardo Augusto Telles, Evelise Oliveira Grisi-Filho, José Henrique Hildebrand Heinemann, Marcos Bryan Amaku, Marcos Lage, Andrey Pereira |
author_role |
author |
author2 |
Dorneles, Elaine Maria Seles Mota, Ana Lourdes Arrais de Alencar Gonçalves, Vitor Salvador Picão Ferreira Neto, José Soares Ferreira, Fernando Dias, Ricardo Augusto Telles, Evelise Oliveira Grisi-Filho, José Henrique Hildebrand Heinemann, Marcos Bryan Amaku, Marcos Lage, Andrey Pereira |
author2_role |
author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Luciana Faria de Dorneles, Elaine Maria Seles Mota, Ana Lourdes Arrais de Alencar Gonçalves, Vitor Salvador Picão Ferreira Neto, José Soares Ferreira, Fernando Dias, Ricardo Augusto Telles, Evelise Oliveira Grisi-Filho, José Henrique Hildebrand Heinemann, Marcos Bryan Amaku, Marcos Lage, Andrey Pereira |
dc.subject.por.fl_str_mv |
Bovine Brucella abortus Prevalence Risk factors Minas Gerais Brazil. Bovino Brucella abortus Prevalência Fatores de risco Minas Gerais Brasil. |
topic |
Bovine Brucella abortus Prevalence Risk factors Minas Gerais Brazil. Bovino Brucella abortus Prevalência Fatores de risco Minas Gerais Brasil. |
description |
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 Paranaíba; 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 Erradicação 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. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-11-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27226 10.5433/1679-0359.2016v37n5Supl2p3449 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27226 |
identifier_str_mv |
10.5433/1679-0359.2016v37n5Supl2p3449 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27226/19917 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 37 No. 5Supl2 (2016); 3449-3466 Semina: Ciências Agrárias; v. 37 n. 5Supl2 (2016); 3449-3466 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
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1799306056372846592 |