Toribio Jenny-Ann L M L, Lomata Keresi, Fullman Sam, Jenkins Aaron, Borja Elva, Arif Shumaila, McKercher Jarrad, Blake David, Garcia Anabel, Whittington Richard J, Underwood Frank, Marais Ben J
Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, NSW, Australia.
Sydney Infectious Diseases Institute (Sydney ID), The University of Sydney, NSW, Australia.
Heliyon. 2023 Nov 23;9(12):e22776. doi: 10.1016/j.heliyon.2023.e22776. eCollection 2023 Dec.
causes tuberculosis in cattle and when transmitted to humans typically causes extra-pulmonary tuberculosis (EPTB). Bovine tuberculosis (bTB) has a global distribution and is controlled in most countries to protect animal and public health. Recent studies revealed that bTB is established on dairy farms in Fiji where EPTB cases have been reported in people. The aims of this pilot investigation were to look for putative zoonotic TB (EPTB) cases in people and to evaluate practices that might contribute to the persistence and transmission of between cattle and to humans. Existing data sets were shared between the Fiji Ministry of Agriculture and Ministry of Health and a questionnaire-based survey was implemented using One Health principles. Statistically significant co-location and close proximity of EPTB cases and bovine TB affected farms were identified. The bTB infection status of farms was significantly associated with unfenced water sources where cattle grazed. Of 247 households, 65 % shared drinking water sources with cattle and 36 % consumed raw milk without boiling, while 62 % of participants reported backyard slaughter of cattle. Several participants reported current symptoms potentially suggestive of TB (chronic cough) but the impact of smoking and history of previous TB treatment could not be evaluated. Farmers had limited understanding of the practices required to prevent bTB at farm level. Further study is recommended and should include an assessment of lifetime EPTB diagnoses, classification of farms based on more recent bTB test data and molecular typing of mycobacterial isolates from humans, cattle and the environment. A targeted awareness and education approach is required to reduce the future risk of zoonotic TB and to help ensure uptake of recommendations and practices aimed at controlling and preventing bTB.
牛结核病可导致牛感染结核病,当传播给人类时通常会引发肺外结核病(EPTB)。牛结核病(bTB)在全球范围内都有分布,大多数国家都对其进行管控以保护动物和公众健康。最近的研究表明,斐济的奶牛场存在牛结核病,且该国已报告有人感染肺外结核病。这项初步调查的目的是在人群中寻找可能的人畜共患结核病(EPTB)病例,并评估可能导致牛结核病在牛群之间持续存在和传播给人类的行为。斐济农业部和卫生部共享了现有数据集,并基于“同一健康”原则开展了问卷调查。结果发现,肺外结核病病例与受牛结核病影响的农场在地理位置上存在显著的共置现象且距离很近。农场的牛结核病感染状况与牛群放牧的无围栏水源显著相关。在247户家庭中,65%的家庭与牛共用饮用水源,36%的家庭饮用未经煮沸的生牛奶,62%的受访者报告称有在家后院宰杀牛的情况。一些受访者报告了目前可能提示结核病的症状(慢性咳嗽),但吸烟的影响以及既往结核病治疗史无法评估。农民对农场层面预防牛结核病所需的措施了解有限。建议进一步开展研究,应包括评估终身肺外结核病诊断情况、根据更新的牛结核病检测数据对农场进行分类,以及对来自人类、牛和环境的分枝杆菌分离株进行分子分型。需要采取有针对性的宣传和教育措施,以降低未来人畜共患结核病的风险,并有助于确保人们采纳旨在控制和预防牛结核病的建议及措施。