Situação epidemiológica da brucelose bovina no Estado do Paraná

Dias, Joana Angélica Andrade; Müller, Ernst Eckehardt; Dias, Ricardo Augusto; Freitas, Júlio César de; Amaku, Marcos; Ferreira, Fernando; Silva, M. C. P; Lobo, José; Figueiredo, V.C.F.; Gonçalves, Vı́tor Salvador Picão; Neto, José Soares Ferreira

doi:10.1590/s0102-09352009000700009

Cited by 46 publications

(39 citation statements)

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“…Since most of the dogs evaluated during this study were mongrels maintained in shelters it was not possible to determine their original residence, i.e., if they were originated from rural areas and hence more apt to be in contact with contaminated animal remnants or animals infected by brucellosis. Additionally, a seroepidemiological survey of bovine brucellosis within the state of Paraná has demonstrated that prevalence indices varies between 0.85% to 2.82%, with 2.4% of cattle from the Centre/West/Northern of Paraná being seropositive (DIAS et al, 2009); this reduced prevalence of bovine brucellosis within our region might have also contributed to the negative results observed during this study.…”

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confidence: 56%

Serological detection of Brucella canis in shelter dogs from Northern Paraná

et al. 2012

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This study evaluated the presence of circulating antibodies of anti-Brucella canis and anti-B. abortus in shelter dogs maintained in four cities of Northern Paraná. Serum samples of 100 dogs, of both sexes, from the cities of Apucarana, Arapongas, Londrina and Rolândia were collected for the determination of the serological presence of B. canis by the utilization of agarose gel immunodiffusion and B. abortus by the buffered acidified antigen assay. Only 4% (4/100) of the samples evaluated demonstrated seroreactivity to B. canis, with seropositivity varying between 4.17 -10%. However, positive samples originated only from the cities of Apucarana (4.17%; 2/48) and Londrina (10%; 2/20). Seroreactivity to B. abortus antibodies was not verified within the canine population evaluated. These results suggest that B. canis is circulating within the dog population of Northern Paraná. Key words: Canine disease, epidemiology, brucellosis, serology ResumoEste estudo avaliou a presença de anticorpos circulantes anti-Brucella canis e anti-B. abortus em cães mantidos em abrigos situados em quatro municípios da região Norte do Paraná. Amostras séricas de 100 cães, de ambos os sexos, oriundos das cidades de Apucarana, Arapongas, Londrina e Rolândia foram colhidas para determinação sorológica da presença de anticorpos contra B. canis por meio da técnica de imunodifusão em gel de agarose e de anticorpos contra B. abortus por meio da prova do antígeno acidificado tamponado. Somente 4% (4/100) das amostras avaliadas foram sororreagentes a B. canis, com soropositividade variando entre 4.17 -10%. Contudo, as amostras positivas foram oriundas somente das cidades de Apucarana (4.17%; 2/48) e Londrina (10%; 2/20). Não foram verificadas amostras sororreagentes a B. abortus na população canina avaliada. Esses resultados sugerem que B. Canis circula na população de cães da região Norte do Paraná.

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confidence: 56%

Serological detection of Brucella canis in shelter dogs from Northern Paraná

et al. 2012

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“…Thus, in order to establish rational strategies for combating bovine brucellosis, its epidemiological status was studied in 18 Federative Units, which revealed that the prevalence of infected herds ranged from 0.32% in Santa Catarina to 41.5% in Mato Grosso do Sul (ALMEIDA et al, 2016;ALVES et al, 2009;AZEVEDO et al, 2009;BORBA et al, 2013;SIKUSAWA et al, 2009;CHATE et al, 2009;CLEMENTINO et al, 2016;DIAS et al, 2009aDIAS et al, , 2009bGONÇALVES et al, 2009aGONÇALVES et al, , 2009bKLEIN-GUNNEWIEK et al, 2009;MARVULO et al, 2009;NEGREIROS et al, 2009;OGATA et al, 2009;ROCHA et al, 2009;SILVA et al, 2009;VILLAR et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Effect of vaccination in lowering bovine brucellosis in the State of Rondônia, Brazil

Inlamea

Rocha²,

Ferreira

et al. 2016

SCA

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The study was carried out to evaluate the effectiveness of the vaccination program against bovine brucellosis, implemented by the State of Rondônia, using prevalence rates as an indicator. The State was divided into three regions. For each region, a pre-determined number of herds were selected and at each herds, blood samples were collected from randomly chosen females with 24 months age or more. Sera from animals were submitted to a serial testing protocol, with screening performed using the buffered acidified antigen test and confirmation by the complement fixation test. A epidemiological questionnaire was administered to each farm property to identify the risk factors associated with the disease. The prevalence rates of infected herds and infected animal at the state were 12.3% [10.3-14.6] and was 1.9% [1.4-2.5], respectively. Between the regions, the prevalence of infected herds varied from 11.6% to 12.8% and the prevalence of infected animals ranged between 1.4% and 2.6%. Bovine brucellosis in Rondônia State is associated with the beef herd, a larger number of cows and the presence of flooded pastures. There was an important reduction in prevalence rates of infected herds and infected animals since 2004, however further reduction could still be achieved with vaccination. Thus, the State should continue its vaccination program, placing emphasis on ensuring the quality of the process. In addition, it should also promote the use of a vaccine that does not induce antibody formation. Additionally, the State must carry out a great effort of education so that producers test breeding animals for brucellosis before introducing them onto their properties and, where possible, prevent calved cows from having access to areas that are flooded. Key words: Bovine brucellosis. Vaccination. Prevalence. Risk factors. Rondônia. Brazil. ResumoO estudo foi realizado para se verificar a eficácia do programa de vacinação contra brucelose bovina implementado pelo estado de Rondônia, utilizando-se a prevalência como indicador. O Estado

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“…The prevalence of brucellosis infected herds varied from 0.32% in the state of Santa Catarina to 41.5% in the state of Mato Grosso do Sul (ALVES et al, 2009;AZEVEDO et al, 2009;BORBA et al, 2013;CHATE et al, 2009;DIAS et al, 2009aDIAS et al, , 2009bGONÇALVES et al, 2009aGONÇALVES et al, , 2009bKLEIN-GUNNEWIEK et al, 2009;MARVULO et al, 2009;NEGREIROS et al, 2009;OGATA et al, 2009;ROCHA et al, 2009;SIKUSAWA et al, 2009;SILVA et al, 2009;VILLAR et al, 2009;ALMEIDA et al, 2016;CLEMENTINO et al, 2016). The states of Santa Catarina, São Paulo, Minas Gerais, Rondônia, Mato Grosso, Mato Grosso do Sul, and Rio Grande do Sul carried out a second study on the prevalence of brucellosis.…”

Section: Introductionmentioning

confidence: 99%

An update on the epidemiologic situation of bovine brucellosis in the State of Espírito Santo, Brazil

Anzai

Costa²,

Said

et al. 2016

SCA

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A cross-sectional study was carried out between January 2012 and May 2014 to estimate the prevalence of bovine brucellosis in the state of Espírito Santo, Brazil. This study was carried out 11 years after the implementation of the immunization program for heifers with a vaccine derived from the S19 strain of Brucella abortus. The state was divided into two regions. Three hundred farms from each region, with reproductive activity, were randomly chosen and included as primary sample units. A fixed number of cows were randomly selected and tested for antibodies against Brucella spp. A farm was considered to be infected when at least one female tested positive for Brucella spp. In the selected farms, an epidemiological questionnaire based survey, focused on herd traits as well as husbandry and sanitary practices, was conducted, to evaluate the factors associated with the risk of infection. The overall prevalence of infected herds was 9.3% (95% confidence interval, 95% CI = 7.1-11.8%), varying from 8.7% (95% CI = 5.7-12.6%) in region 2 to 9.7% (95% CI = 6.8-13.4%) in region 1. There was no significant difference in the prevalence between the regions. The apparent prevalence of Brucella spp. positive farms across the regions and the state was similar to the prevalence observed 11 years earlier.The prevalence of positive animals was 3.8% (95% CI = 0.9-10.1%), varying from 1.5% (95% CI = 0.8-2.4%) in region 1 to 7.9% (95% CI = 1.9-20.3%) in region 2, without a significant difference between the regions. There was no difference in the number of Brucella spp. positive animals after 11 years of the immunization program. The risk factors associated with brucellosis were (i) more than 10 cows per herd (OR = 5.0; 95% CI =2.5-11.1) and (ii) equipment, feedstock, or personnel sharing (OR = 2.2; 95% CI = 1.1-4.2). The state of Espírito Santo should seek systematic vaccination coverage targeting more than 80% of the eligible heifers. An efficient animal health program, which educates the farmers to test replacement animals for brucellosis before introducing them to their herds, to avoid equipment, personnel or feedstock sharing with farms of unknown sanitary conditions, and to increase awareness of the importance of good sanitary procedures during artificial insemination, should be implemented. Anzai, E. K. et al. ResumoPara estimar a prevalência e os fatores de risco da brucelose bovina no Estado do Espírito Santo (Brasil), foi realizado um estudo transversal entre janeiro de 2012 e maio de 2014. Esse estudo foi realizado 11 anos após a implementação de um programa de imunização em novilhas utilizando uma vacina derivada da estirpe S19 de Brucella abortus. O estado foi dividido em duas regiões. Trezentas propriedades com atividade reprodutiva foram aleatoriamente selecionadas em cada região e incluídas como unidades primárias de amostragem. Um número fixo de fêmeas adultas foi aleatoriamente selecionado em cada propriedade. Os animais foram testados para anticorpos contra Brucella spp. Um questionário epidemiológico foi ...

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Situação epidemiológica da brucelose bovina no Estado do Paraná

Cited by 46 publications

References 1 publication

Serological detection of Brucella canis in shelter dogs from Northern Paraná

Serological detection of Brucella canis in shelter dogs from Northern Paraná

Effect of vaccination in lowering bovine brucellosis in the State of Rondônia, Brazil

An update on the epidemiologic situation of bovine brucellosis in the State of Espírito Santo, Brazil

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