Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program

Detalhes bibliográficos
Autor(a) principal: Dias, Ricardo Augusto
Data de Publicação: 2016
Outros Autores: Belchior, Ana Paula Cunha, Ferreira, Rodrigo de Souza, Gonçalves, Rita Coelho, Aguiar, Ricardo Souza Costa Barão de, Sousa, Paola da Rocha, Santos, Arianne Mastrangeli Amici, Amaku, Marcos, Ferreira, Fernando, Telles, Evelise Oliveira, Grisi-Filho, José Henrique Hildebrand, Heinemann, Marcos Bryan, Gonçalves, Vitor Salvador Picão, Ferreira Neto, José Soares
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/27233
Resumo: A cross- sectional study was carried out, between May and November 2011, to estimate the situation of the bovine brucellosis in São Paulo State, 10 years after the commencement of the vaccination of the heifers with the S19 strain. The State was divided into seven regions and in each of them, 300 farms with reproductive activity were randomly chosen and considered as primary sample units. A fixed number of cows was randomly selected and tested for antibodies against Brucella spp. A farm was considered infected if at least one female tested positive. In the selected farms, an epidemiological questionnaire was administered which focused on herd traits as well as husbandry and sanitary practices that could be associated with the risk of infection. The prevalence (percentile, [95% confidence interval]) of infected herds was 10.2% [8.8-11.8] for the State, and for the regions, it varied from 7.3% [4.7-11.2] to 12.3% [8.8-16.8], not showing significant difference between different regions. The apparent prevalence of positive farms in the State and regions remained similar to the prevalence observed 10 years before. The prevalence of positive animals was 2.4% [1.8-3.1] in the State and varied from 1.1% [0.6-2] to 3.5% [1.7-7.1] in the regions, not showing significant difference between regions. Again, there was no difference in the prevalence of positive animals after 10 years of the vaccination program. The risk factors (odds ratio, 95% confidence interval) associated with bovine brucellosis in the State included number of cows ? 24 (3.08, 2.22-4.27) and the acquisition of breeding animals (1.33, 0.95-1.87). The São Paulo State should conduct systematic vaccination coverage of above 80% of the eligible heifers with the S19 strain vaccine annually. Moreover, the State should emphatically use RB51 strain vaccine in females above 8 months of age not vaccinated with S19 strain vaccine. An efficient animal health education program to orientate farmers to test replacement animals for brucellosis prior to introduction in their herds should also be implemented.
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spelling Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination programControle da brucelose bovina no estado de São Paulo, Brasil: resultados após dez anos do programa de vacinaçãoBovine brucellosisPNCEBTPrevalenceRisk factorsSão PauloBrazil.Brucelose bovinaFatores de riscoPNCEBTPrevalênciaSão PauloBrasil.A cross- sectional study was carried out, between May and November 2011, to estimate the situation of the bovine brucellosis in São Paulo State, 10 years after the commencement of the vaccination of the heifers with the S19 strain. The State was divided into seven regions and in each of them, 300 farms with reproductive activity were randomly chosen and considered as primary sample units. A fixed number of cows was randomly selected and tested for antibodies against Brucella spp. A farm was considered infected if at least one female tested positive. In the selected farms, an epidemiological questionnaire was administered which focused on herd traits as well as husbandry and sanitary practices that could be associated with the risk of infection. The prevalence (percentile, [95% confidence interval]) of infected herds was 10.2% [8.8-11.8] for the State, and for the regions, it varied from 7.3% [4.7-11.2] to 12.3% [8.8-16.8], not showing significant difference between different regions. The apparent prevalence of positive farms in the State and regions remained similar to the prevalence observed 10 years before. The prevalence of positive animals was 2.4% [1.8-3.1] in the State and varied from 1.1% [0.6-2] to 3.5% [1.7-7.1] in the regions, not showing significant difference between regions. Again, there was no difference in the prevalence of positive animals after 10 years of the vaccination program. The risk factors (odds ratio, 95% confidence interval) associated with bovine brucellosis in the State included number of cows ? 24 (3.08, 2.22-4.27) and the acquisition of breeding animals (1.33, 0.95-1.87). The São Paulo State should conduct systematic vaccination coverage of above 80% of the eligible heifers with the S19 strain vaccine annually. Moreover, the State should emphatically use RB51 strain vaccine in females above 8 months of age not vaccinated with S19 strain vaccine. An efficient animal health education program to orientate farmers to test replacement animals for brucellosis prior to introduction in their herds should also be implemented.Um estudo transversal foi realizado entre maio e novembro de 2011 para estimar a situação da brucelose bovina no estado de São Paulo, 10 anos após o início do programa de vacinação de fêmeas bovinas com a vacina B19. O Estado foi dividido em sete regiões e em cada uma delas, 300 propriedades com atividade reprodutiva foram aleatoriamente selecionadas e consideradas unidades primárias de amostragem. Um numero fixo de vacas foi selecionado aleatoriamente e testado para anticorpos anti-Brucella spp. Uma propriedade foi considerada infectada se ao menos uma vaca resultou positiva. Nas propriedades selecionadas, um questionário epidemiológico foi aplicado, focando a caracterização do rebanho e as práticas de manejo e sanitárias que pudessem estar associadas com o risco de infecção. A prevalência (percentual, [intervalo de confiança de 95%]) dos rebanhos infectados foi 10,2% [8,8-11,8] para o Estado e, para as regiões, variou de 7,3% [4,7-11,2] a 12,3% [8,8-16,8], não apresentando diferença significativa entre as diferentes regiões. A prevalência aparente de propriedades positivas no Estado e regiões permaneceu similar à prevalência observada há 10 anos. A prevalência de fêmeas positivas foi 2,4% [1,8-3,1] no Estado e variou de 1,1% [0,6-2] a 3,5% [1,7-7,1] nas regiões, não apresentando diferenças significativas. Novamente, não houve diferença significativa na prevalência de animais positivos após 10 anos de programa de vacinação. Os fatores de risco (odds ratio; intervalo de confiança de 95%) associados à brucelose bovina no Estado incluíram o número de vacas ? 24 (3,08; 2,22-4,27) e a aquisição de reprodutores (1,33; 0,95-1,87). O estado de São Paulo deve promover uma cobertura vacinal sistemática superior a 80% do rebanho elegível de bezerras com a vacina B19, anualmente. Além disso, o Estado deve enfaticamente utilizar a vacina RB51 em fêmeas com idade superior a 8 meses de idade não vacinadas com a vacina B19. Um programa de educação em saúde animal eficiente deve ser implantado, a fim de orientar os proprietários a testar animais de reposição para brucelose antes da sua introdução no rebanho.UEL2016-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2723310.5433/1679-0359.2016v37n5Supl2p3505Semina: Ciências Agrárias; Vol. 37 No. 5Supl2 (2016); 3505-3518Semina: Ciências Agrárias; v. 37 n. 5Supl2 (2016); 3505-35181679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27233/19921Copyright (c) 2016 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessDias, Ricardo AugustoBelchior, Ana Paula CunhaFerreira, Rodrigo de SouzaGonçalves, Rita CoelhoAguiar, Ricardo Souza Costa Barão deSousa, Paola da RochaSantos, Arianne Mastrangeli AmiciAmaku, MarcosFerreira, FernandoTelles, Evelise OliveiraGrisi-Filho, José Henrique HildebrandHeinemann, Marcos BryanGonçalves, Vitor Salvador PicãoFerreira Neto, José Soares2022-11-29T16:44:30Zoai:ojs.pkp.sfu.ca:article/27233Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T16:44:30Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv 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
title Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
spellingShingle Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
Dias, Ricardo Augusto
Bovine brucellosis
PNCEBT
Prevalence
Risk factors
São Paulo
Brazil.
Brucelose bovina
Fatores de risco
PNCEBT
Prevalência
São Paulo
Brasil.
title_short Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
title_full Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
title_fullStr Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
title_full_unstemmed Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
title_sort Controlling bovine brucellosis in the state of São Paulo, Brazil: results after ten years of a vaccination program
author Dias, Ricardo Augusto
author_facet Dias, Ricardo Augusto
Belchior, Ana Paula Cunha
Ferreira, Rodrigo de Souza
Gonçalves, Rita Coelho
Aguiar, Ricardo Souza Costa Barão de
Sousa, Paola da Rocha
Santos, Arianne Mastrangeli Amici
Amaku, Marcos
Ferreira, Fernando
Telles, Evelise Oliveira
Grisi-Filho, José Henrique Hildebrand
Heinemann, Marcos Bryan
Gonçalves, Vitor Salvador Picão
Ferreira Neto, José Soares
author_role author
author2 Belchior, Ana Paula Cunha
Ferreira, Rodrigo de Souza
Gonçalves, Rita Coelho
Aguiar, Ricardo Souza Costa Barão de
Sousa, Paola da Rocha
Santos, Arianne Mastrangeli Amici
Amaku, Marcos
Ferreira, Fernando
Telles, Evelise Oliveira
Grisi-Filho, José Henrique Hildebrand
Heinemann, Marcos Bryan
Gonçalves, Vitor Salvador Picão
Ferreira Neto, José Soares
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Dias, Ricardo Augusto
Belchior, Ana Paula Cunha
Ferreira, Rodrigo de Souza
Gonçalves, Rita Coelho
Aguiar, Ricardo Souza Costa Barão de
Sousa, Paola da Rocha
Santos, Arianne Mastrangeli Amici
Amaku, Marcos
Ferreira, Fernando
Telles, Evelise Oliveira
Grisi-Filho, José Henrique Hildebrand
Heinemann, Marcos Bryan
Gonçalves, Vitor Salvador Picão
Ferreira Neto, José Soares
dc.subject.por.fl_str_mv Bovine brucellosis
PNCEBT
Prevalence
Risk factors
São Paulo
Brazil.
Brucelose bovina
Fatores de risco
PNCEBT
Prevalência
São Paulo
Brasil.
topic Bovine brucellosis
PNCEBT
Prevalence
Risk factors
São Paulo
Brazil.
Brucelose bovina
Fatores de risco
PNCEBT
Prevalência
São Paulo
Brasil.
description A cross- sectional study was carried out, between May and November 2011, to estimate the situation of the bovine brucellosis in São Paulo State, 10 years after the commencement of the vaccination of the heifers with the S19 strain. The State was divided into seven regions and in each of them, 300 farms with reproductive activity were randomly chosen and considered as primary sample units. A fixed number of cows was randomly selected and tested for antibodies against Brucella spp. A farm was considered infected if at least one female tested positive. In the selected farms, an epidemiological questionnaire was administered which focused on herd traits as well as husbandry and sanitary practices that could be associated with the risk of infection. The prevalence (percentile, [95% confidence interval]) of infected herds was 10.2% [8.8-11.8] for the State, and for the regions, it varied from 7.3% [4.7-11.2] to 12.3% [8.8-16.8], not showing significant difference between different regions. The apparent prevalence of positive farms in the State and regions remained similar to the prevalence observed 10 years before. The prevalence of positive animals was 2.4% [1.8-3.1] in the State and varied from 1.1% [0.6-2] to 3.5% [1.7-7.1] in the regions, not showing significant difference between regions. Again, there was no difference in the prevalence of positive animals after 10 years of the vaccination program. The risk factors (odds ratio, 95% confidence interval) associated with bovine brucellosis in the State included number of cows ? 24 (3.08, 2.22-4.27) and the acquisition of breeding animals (1.33, 0.95-1.87). The São Paulo State should conduct systematic vaccination coverage of above 80% of the eligible heifers with the S19 strain vaccine annually. Moreover, the State should emphatically use RB51 strain vaccine in females above 8 months of age not vaccinated with S19 strain vaccine. An efficient animal health education program to orientate farmers to test replacement animals for brucellosis prior to introduction in their herds should also be implemented.
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
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dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27233
10.5433/1679-0359.2016v37n5Supl2p3505
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/27233
identifier_str_mv 10.5433/1679-0359.2016v37n5Supl2p3505
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/27233/19921
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); 3505-3518
Semina: Ciências Agrárias; v. 37 n. 5Supl2 (2016); 3505-3518
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
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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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