Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013
A cross sectional study was performed to assess the epidemiological status of bovine tuberculosis in the state of Minas Gerais, Brazil, in 2013. The state was divided into seven regions, and a preset number of herds was randomly sampled in each region. From each farm, female cattle aged 24 months or...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2016-11-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27405 |
| _version_ | 1818983320200937472 |
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| author | Jonata de Melo Barbieri Luciana Faria de Oliveira Elaine Maria Seles Dorneles Ana Lourdes Arrais de Alencar Mota Vitor Salvador Picão Gonçalves Patrícia Prata Maluf José Soares Ferreira Neto Fernando Ferreira Ricardo Augusto Dias Evelise Oliveira Telles Jose Henrique Hildebrand Grisi-Filho Marcos Bryan Heinemann Marcos Amaku Andrey Pereira Lage |
| author_facet | Jonata de Melo Barbieri Luciana Faria de Oliveira Elaine Maria Seles Dorneles Ana Lourdes Arrais de Alencar Mota Vitor Salvador Picão Gonçalves Patrícia Prata Maluf José Soares Ferreira Neto Fernando Ferreira Ricardo Augusto Dias Evelise Oliveira Telles Jose Henrique Hildebrand Grisi-Filho Marcos Bryan Heinemann Marcos Amaku Andrey Pereira Lage |
| author_sort | Jonata de Melo Barbieri |
| collection | DOAJ |
| description | A cross sectional study was performed to assess the epidemiological status of bovine tuberculosis in the state of Minas Gerais, Brazil, in 2013. The state was divided into seven regions, and a preset number of herds was randomly sampled in each region. From each farm, female cattle aged 24 months or older were randomly sampled and subjected to the comparative cervical tuberculin test (CCTT). Animals with inconclusive test results were re-tested with the same diagnostic procedure after a minimum interval of 60 days. A total of 31?832 animals were tested from 2?182 farms. An epidemiological questionnaire was administered in the farms to identify risk factors associated with bovine tuberculosis. Prevalence in the state was estimated at 4.25% (95% CI: 3.36% – 5.15%) for herds and at 0.56% (95% CI: 0.46% – 0.66%) for animals. Data on herd prevalence for bovine tuberculosis for each stratum showed the highest prevalences at region Sul e Sudoeste (stratum 5) and region Central (stratum 3) which were significantly different from the lowest prevalences found at regions Noroeste, Norte e Nordeste (stratum 1) and region Leste (stratum 2). The highest animal prevalences observed for the region Sul e Sudoeste (stratum 5), region Zona da Mata (stratum 4) and region Central (stratum 3) were significantly different from the lowest ones at region Triângulo Mineiro (stratum 7), region Noroeste, Norte, e Nordeste (stratum 1) and region Leste (stratum 2). The presence of bovine tuberculosis was associated with animal purchase from cattle traders (OR?=?2.59 [95% CI: 1.28 – 5.20]), higher yield intensive dairy (OR?=?7.55 [95% CI: 1.89% – 30.09%]) and non-intensive dairy production (OR?=?3.58 [95% CI: 1.06% – 12.04%]), as well as with herds with 30 or more cows (OR?=?1.97 [95% CI: 1.02 – 3.80]). Non-specific reactors to the CCTT were found in 95.07% (95% CI: 94.05% - 96.09%) of the herds. Therefore, the state of Minas Gerais should implement surveillance systems for the detection and sanitation of infected herds, preferably incorporating risk-based surveillance elements, considering the results of the present study. |
| first_indexed | 2024-12-20T18:01:14Z |
| format | Article |
| id | doaj.art-30027c444b944738879ad41611a60538 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-20T18:01:14Z |
| publishDate | 2016-11-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-30027c444b944738879ad41611a605382022-12-21T19:30:37ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-11-01375Supl23531354810.5433/1679-0359.2016v37n5Supl2p353114487Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013Jonata de Melo Barbieri0Luciana Faria de Oliveira1Elaine Maria Seles Dorneles2Ana Lourdes Arrais de Alencar Mota3Vitor Salvador Picão Gonçalves4Patrícia Prata Maluf5José Soares Ferreira Neto6Fernando Ferreira7Ricardo Augusto Dias8Evelise Oliveira Telles9Jose Henrique Hildebrand Grisi-Filho10Marcos Bryan Heinemann11Marcos Amaku12Andrey Pereira Lage13Universidade Federal de Minas GeraisInstituto Mineiro de AgropecuáriaUniversidade Federal de LavrasUniversidade de BrasíliaUniversidade de BrasíliaInstituto Mineiro de AgropecuáriaUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloUniversidade de São PauloDepartamento de Medicina Veterinária PreventivaA cross sectional study was performed to assess the epidemiological status of bovine tuberculosis in the state of Minas Gerais, Brazil, in 2013. The state was divided into seven regions, and a preset number of herds was randomly sampled in each region. From each farm, female cattle aged 24 months or older were randomly sampled and subjected to the comparative cervical tuberculin test (CCTT). Animals with inconclusive test results were re-tested with the same diagnostic procedure after a minimum interval of 60 days. A total of 31?832 animals were tested from 2?182 farms. An epidemiological questionnaire was administered in the farms to identify risk factors associated with bovine tuberculosis. Prevalence in the state was estimated at 4.25% (95% CI: 3.36% – 5.15%) for herds and at 0.56% (95% CI: 0.46% – 0.66%) for animals. Data on herd prevalence for bovine tuberculosis for each stratum showed the highest prevalences at region Sul e Sudoeste (stratum 5) and region Central (stratum 3) which were significantly different from the lowest prevalences found at regions Noroeste, Norte e Nordeste (stratum 1) and region Leste (stratum 2). The highest animal prevalences observed for the region Sul e Sudoeste (stratum 5), region Zona da Mata (stratum 4) and region Central (stratum 3) were significantly different from the lowest ones at region Triângulo Mineiro (stratum 7), region Noroeste, Norte, e Nordeste (stratum 1) and region Leste (stratum 2). The presence of bovine tuberculosis was associated with animal purchase from cattle traders (OR?=?2.59 [95% CI: 1.28 – 5.20]), higher yield intensive dairy (OR?=?7.55 [95% CI: 1.89% – 30.09%]) and non-intensive dairy production (OR?=?3.58 [95% CI: 1.06% – 12.04%]), as well as with herds with 30 or more cows (OR?=?1.97 [95% CI: 1.02 – 3.80]). Non-specific reactors to the CCTT were found in 95.07% (95% CI: 94.05% - 96.09%) of the herds. Therefore, the state of Minas Gerais should implement surveillance systems for the detection and sanitation of infected herds, preferably incorporating risk-based surveillance elements, considering the results of the present study.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27405BrazilMinas GeraisMycobacterium bovisPrevalenceRisk factors. |
| spellingShingle | Jonata de Melo Barbieri Luciana Faria de Oliveira Elaine Maria Seles Dorneles Ana Lourdes Arrais de Alencar Mota Vitor Salvador Picão Gonçalves Patrícia Prata Maluf José Soares Ferreira Neto Fernando Ferreira Ricardo Augusto Dias Evelise Oliveira Telles Jose Henrique Hildebrand Grisi-Filho Marcos Bryan Heinemann Marcos Amaku Andrey Pereira Lage Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 Semina: Ciências Agrárias Brazil Minas Gerais Mycobacterium bovis Prevalence Risk factors. |
| title | Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 |
| title_full | Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 |
| title_fullStr | Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 |
| title_full_unstemmed | Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 |
| title_short | Epidemiological status of bovine tuberculosis in the State of Minas Gerais, Brazil, 2013 |
| title_sort | epidemiological status of bovine tuberculosis in the state of minas gerais brazil 2013 |
| topic | Brazil Minas Gerais Mycobacterium bovis Prevalence Risk factors. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27405 |
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