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. 2022 Jul;69(4):e814-e822.
doi: 10.1111/tbed.14371. Epub 2021 Nov 22.

Bovine tuberculosis in Taiwan, 2008-2019

Tai-Hua Chan  1   2 , Chun-Sheng Huang  3 , Chien Tu  3 , Ruwen Jou  1   2   4
Affiliations

Bovine tuberculosis in Taiwan, 2008-2019

Tai-Hua Chan et al. Transbound Emerg Dis. 2022 Jul.

Abstract

Bovine tuberculosis (bTB) is a zoonosis caused by Mycobacterium bovis. The impact of bTB on global TB control has been underestimated. We adopted the One Health approach to human bTB surveillance in Taiwan. Of 20,972 human TB cases, 202 (1.0%) were bTB, 78.2% were in males, 85.1% were new cases, 83.2% were pulmonary TB, and most were in Central (52.5%) and Southern (24.8%) Taiwan. Only 18.8% of bTB patients had known animal contact. Of the 202 human M. bovis strains, 100% were resistant to pyrazinamide (PZA), 30.2% were concurrently resistant to isoniazid (INH) and 2.0% were multidrug resistant, defined as being resistant to at least INH and rifampin. Whereas, of the 22 animal M. bovis strains, 100% and 22.7% were resistant to PZA and INH, respectively. Seven spoligotypes and 25 mycobacterial interspersed repetitive unit genotypes were identified. The predominant genotype, SB0265, was also prevalent in livestock. Notably, six animal-specific M. bovis genotypes were identified. bTB differential diagnosis and drug resistance detection are crucial for TB control. Comprehensive surveillance and human-animal interface investigations are needed.

Keywords: Mycobacterium bovis; One Health; bovine tuberculosis; drug resistance; genotype.

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