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- Title
Apparent prevalence and risk factors for bovine tuberculosis in the state of Paraná, Brazil: an assessment after 18 years since the beginning of the Brazilian program.
- Authors
Rodrigues, Diego Leonardo; Amorim, Elenice Aparecida; Ferreira, Fernando; Amaku, Marcos; Baquero, Oswaldo Santos; de Hildebrand e Grisi Filho, José Henrique; Dias, Ricardo Augusto; Heinemann, Marcos Bryan; Telles, Evelise Oliveira; Gonçalves, Vitor Salvador Picão; Compton, Christopher; Ferreira Neto, José Soares
- Abstract
Bovine tuberculosis (bTB) impacts considerably animal production and one health worldwide. To describe the prevalence, risk factors, and spatial pattern of the disease in the state of Paraná, Brazil, a cross-sectional study was conducted from September 2018 to February 2019. The area was divided into seven regions. Within each region, farms were randomly selected, and a predetermined number of cows was selected and tested by a comparative cervical tuberculin test. 17,210 animals were tested across 1757 farms. Herd prevalence of bTB-infected herds in Paraná was 2.5% [1.87–3.00%]. It has varied from 0.8 to 3.98% among seven regions, with clustering being detected in the west, central, and northeast areas. Animal prevalence was 0.35% [0.21–0.59%] and has varied from 0.08 to 0.6% among the pre-set regions. No major shifts in the prevalence of bTB were detected since 2007. Large-sized herds, dairy production, and feeding with whey were detected to be correlated with the presence of bTB. Exclusively among dairy herds, veterinary assistance from cooperatives, possession of self-owned equipment to cool milk, and feeding with whey were correlated with the disease. Considering these results, it is recommended that the state of Paraná seek to implement a surveillance system for the detection of bTB-infected herds transforming them into free ones, if possible, incorporating elements of risk-based surveillance. Health education is also recommended to inform farmers about the risks of introducing animals without testing and of feeding raw whey to calves.
- Publication
Tropical Animal Health & Production, 2022, Vol 54, Issue 6, p1
- ISSN
0049-4747
- Publication type
Article
- DOI
10.1007/s11250-022-03350-0