Situação epidemiológica da brucelose bovina no Estado do Espírito Santo

Azevêdo, Sérgio Santos de; Neto, José Soares Ferreira; Dias, Ricardo Augusto; Ferreira, Fernando; Amaku, Marcos; Figueiredo, V.C.F.; Lobo, José; Gonçalves, Vı́tor Salvador Picão; SOUZA, ANNE CAROLINE GOMES DE; Vasconcellos, Sílvio Arruda

doi:10.1590/s0102-09352009000700004

Cited by 42 publications

(40 citation statements)

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“…Additional parameters for dimensioning the economic impact of bovine brucellosis in Brazil is the fact the total losses of about 892.7 million Reais is roughly equivalent to a little more than one billion liters of milk or more than 500 thousand fattened steers for slaughter. A comprehensive model was developed in this study, which was based on reliable epidemiological data (Alves et al 2009, Azevedo et al 2009, Rocha et al 2009, Chate et al 2009, Negreiros et al 2009, Klein-Gunnewiek et al 2009, Villar et al 2009, Marvulo et al 2009, Sikusawa et al 2009, Ogata et al 2009, Minervino et al 2011, on sound clinical parameters (Bernués et al 1997), and on scientifically determined economic variables appropriate for dairy (Lucas 2006) or beef cattle (Jorge Jr et al 2006). This model has an intermediate level of stringency.…”

Section: Discussionmentioning

confidence: 99%

“…The Brazilian National Program for Control and Eradication of Brucellosis and Tuberculosis has recently provided detailed epidemiological data covering most of the cattle population in the country (Poester et al 2009), including the states of Bahia (Alves et al 2009), the Federal District ), Espírito Santo (Azevedo et al 2009), Goiás (Rocha et al 2009), Minas Gerais , Mato Grosso do Sul (Chate et al 2009), Mato Grosso (Negreiros et al 2009), Paraná , Rio de Janeiro (Klein-Gunnewiek et al 2009), Rondônia (Villar et al 2009), Rio Grande do Sul (Marvulo et al 2009), Santa Catarina (Sikusawa et al 2009), Sergipe ), São Paulo ) e Tocantins (Ogata et al 2009). In addition, recent epidemiological data from the State of Pará has been included in the present study (Minervino et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Economic losses due to bovine brucellosis in Brazil

et al. 2013

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Pesq. Vet. Bras. 33(6):759-764, junho 2013 759 RESUMO.-[Perdas econômicas devidas à brucelose bovina no Brasil.] A brucelose é uma zoonose de importân-cia mundial. Recentes dados epidemiológicos dessa doença foram obtidos por meio de estudos que abrangeram em torno de 90% do rebanho bovino do Brasil. Observa--se escassez de informações sobre o impacto econômico causado pela brucelose bovina, portanto, o objetivo do presente estudo foi estimar as perdas econômicas na pecuária brasileira. Gastos relacionados com as ocorrências de abortos, natimortos, subfertilidade, descartes involuntários, mortalidade, intervenções veterinárias, diminuição da produção de leite e de carne, foram considerados nos cálculos. As perdas devidas à brucelose bovina no Brasil foram estimadas em R$ 420,12 ou R$ 226,47 para cada fêmea infectada acima de 24 meses de idade em rebanhos de leite Brucellosis is an important zoonosis of worldwide distribution. Reliable epidemiologic brucellosis data covering approximately 90% of the cattle population in Brazil have been recently published. Therefore, considering the scarcity of information regarding the economic impact of bovine brucellosis in Brazil, the goal of this study was to estimate economic impact of brucellosis on the Brazilian cattle industry. Several parameters including abortion and perinatal mortality rates, temporary infertility, replacement costs, mortality, veterinary costs, milk and meat losses were considered in the model. Bovine brucellosis in Brazil results in an estimated loss of R$ 420,12 or R$ 226,47 for each individual dairy or beef infected female above 24 months of age, respectively. The total estimated losses in Brazil attributed to bovine brucellosis were estimated to be approximately R$ 892 million (equivalent to about 448 million American dollars). Every 1% increase or decrease in prevalence is expected to increase or decrease the economic burden of brucellosis in approximately 155 million Reais.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Economic losses due to bovine brucellosis in Brazil

et al. 2013

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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 Espírito Santo

Cited by 42 publications

References 2 publications

Economic losses due to bovine brucellosis in Brazil

Economic losses due to bovine brucellosis in Brazil

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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