Situação epidemiológica da brucelose bovina no Estado do Tocantins

Ogata, Renato Akio; Gonçalves, Vı́tor Salvador Picão; Figueiredo, V.C.F.; Lobo, José; Rodrigues, Albério Lopes; Amaku, Marcos; Ferreira, Fernando; Neto, José Soares Ferreira; Dias, Ricardo Augusto

doi:10.1590/s0102-09352009000700016

Cited by 45 publications

(45 citation statements)

References 2 publications

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“…In Brazil, this association was also observed in the states of Rio de Janeiro, Sergipe, Tocantins, São Paulo, Mato Grosso do Sul and Mato Grosso (CHATE et al, 2009;DIAS et al, 2009b;KLEIN-GUNNEWIEK et al, 2009;OGATA et al, 2009;NEGREIROS et al, 2009;SILVA et al, 2009). Furthermore, this association was also noted by numerous international authors (KELLAR et al, 1976;NICOLETTI, 1980;SALMAN;MEYER, 1984).…”

Section: Discussionmentioning

confidence: 84%

“…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%

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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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Section: Discussionmentioning

confidence: 84%

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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“…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%

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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“…In relation to bovine brucellosis, 18 Brazilian states were recently studied, comprising 85% of the country cattle population, and the prevalence ranged from 0.91% in Santa Catarina to 30.6% in Mato Grosso do Sul ALVES et al, 2009;ANZAI et al, 2016;BARDDAL et al, 2016;BAUMGARTEN et al, 2016;BORBA et al, 2013;CLEMENTINO et al, 2016;DIAS et al, 2009;DIAS et al, 2016a;INLAMEA et al, 2016;KLEIN-GUNNEWIEK et al, 2009;LEAL FILHO et al, 2016;OGATA et al, 2009;OLIVEIRA et al, 2016;ROCHA et al, 2009;SILVA et al, 2016b;SILVA et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Decline in Mycobacterium bovis and Brucella abortus populations during the maturation of experimentally contaminated parmesan-type cheese

Starikoff

Fontanesi

Maciel

et al. 2016

SCA

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Decline in Mycobacterium bovis AbstractBrazilian legislation allows the manufacture of raw milk cheese with a maturation exceeding 60 days at room temperature above 5°C, but there is a lack of solid scientific evidence on the efficacy of this maturation process in inactivating important pathogens that may be present in milk, such as Mycobacterium bovis and Brucella abortus. Thus, the objectives of this study were to produce parmesantype cheese experimentally contaminated with M. bovis and B. abortus and evaluate the survival of these pathogens along 2-month maturation. Parmesan-type cheese was manufactured in the laboratory using whole pasteurized milk with or without inoculation with M. bovis (SB1033) or B. abortus (1119-3) and matured at 18°C for up to 63 days. M. bovis was inoculated in Stonebrink-Leslie medium supplemented with antibiotics and incubated at 37°C for 45 days, and B. abortus was incubated in Farrel medium at 36°C for 3 days. The average D 18°C value, weighted by variance, was 37.5 ± 5.3 days for M. bovis and 5.9 ± 0.7 days for B. abortus. The average physicochemical parameters in the cheese at the end of the study were as follows: pH = 4.89, water activity = 0.976, and moisture percentage = 43.1%. The pH might have contributed to the reduction in the population of B. abortus but seems not to have significantly influenced the population of M. bovis. We conclude that the duration of the maturation process influences the size of the surviving populations of M. bovis and B. abortus, and that the shortening of the maturation duration might not ensure a decline in pathogen levels to safe levels. Thus, complementary studies considering the effect of several other technological aspects on the survival of these pathogens are required, including the effect of the lactic acid bacterial population, salt content, and temperature of maturation. ResumoA legislação brasileira permite a fabricação queijos de leite cru com maturação superior a 60 dias em temperatura acima de 5°C, mas falta evidência científica sólida sobre a eficácia do processo de maturação na inativação de importantes patógenos que podem estar presentes no leite, como o Mycobacterium bovis e a Brucella abortus. Assim, os objetivos desse estudo foram produzir o queijo tipo parmesão experimentalmente contaminado com M. bovis e B. abortus e avaliar a sobrevivência desses patógenos ao longo de 2 meses de maturação. Queijo do tipo parmesão foi fabricado em laboratório com leite pasteurizado integral com ou sem inoculo de M. bovis (SB1033) ou B. abortus (1119-3) e maturado a 18°C por até 63 dias. M. bovis foi semeado em meio Stonebrink-Leslie, acrescido de antibióticos, e incubado a 37°C por 45 dias e a B. abortus foi semeada em meio Farrel a 36°C por 3 dias. O valor D 18°C médio, ponderado pela variância, foi de 37,5 ± 5,3 dias para o M. bovis e de 5,9 ± 0,7 dias para a B. abortus. Os parâmetros físico-químicos médios do queijo no final do estudo foram como se segue: pH = 4,89, atividade de água = 0,976 e umidade percentual = 43,1%. O pH pode ter ...

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Situação epidemiológica da brucelose bovina no Estado do Tocantins

Cited by 45 publications

References 2 publications

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

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

Economic losses due to bovine brucellosis in Brazil

Decline in Mycobacterium bovis and Brucella abortus populations during the maturation of experimentally contaminated parmesan-type cheese

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