Belete Abebe, Tilahun Selam, Haile Belete, Demessie Yitayew, Nigatu Seleshe, Getachew Abebaw, Getaneh Gashaw, Kebede Elias, Ejo Mebrat
Department of Veterinary Epidemiology and Public Health, College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Ethiopia.
Department of Biomedical Sciences, College of Veterinary Medicine and Animal Sciences, University of Gondar, Gondar, Ethiopia.
Infect Ecol Epidemiol. 2021 Nov 1;11(1):1986919. doi: 10.1080/20008686.2021.1986919. eCollection 2021.
In Ethiopia, bovine tuberculosis (BTB) is a neglected disease that affects the economy and livelihoods of farmers. However, the available data is limited due to insufficient disease surveillance in the country. Therefore; this study aimed to assess the prevalence and distribution of lesions of BTB in cattle slaughtered at Gondar, Northwest Ethiopia.
Postmortem examinations were used to detect tuberculous lesions, while smear microscopy and histopathology were performed for the identification of acid-fast bacilli (AFB).
Of 497 inspected slaughtered cattle, 45 (9.1%, 95%CI; 0.0668-0.1193) were diagnosed with BTB suggestive tuberculous lesions. A higher proportion of gross lesions was recorded in lymph nodes of lungs; at the mediastinal (14, 31.1%) and bronchial (10, 22.2%) lymph nodes, and followed by mesenteric lymph nodes (9, 20%). Of 45 tuberculous lesions; only 2 (4.4%) were identified as AFB positive by smear microscopy and histopathology. In the overall statistical analysis, body conditions of slaughtered cattle were found to be significantly associated with BTB tuberculous lesions (p < 0.05).
This finding provides the prevalence of BTB and distribution of tuberculous lesions in cattle slaughtered at the abattoir and highlights the need for a practicable control strategy of the disease in the region.
在埃塞俄比亚，牛结核病（BTB）是一种被忽视的疾病，影响着农民的经济和生计。然而，由于该国疾病监测不足，现有数据有限。因此，本研究旨在评估在埃塞俄比亚西北部贡德尔屠宰的牛中牛结核病病变的患病率和分布情况。
采用尸检来检测结核病变，同时进行涂片显微镜检查和组织病理学检查以鉴定抗酸杆菌（AFB）。
在497头接受检查的屠宰牛中，有45头（9.1%，95%置信区间；0.0668 - 0.1193）被诊断出有提示结核病的病变。肺部淋巴结的肉眼可见病变比例更高；在纵隔淋巴结（14个，31.1%）和支气管淋巴结（10个，22.2%），其次是肠系膜淋巴结（9个，20%）。在45个结核病变中；通过涂片显微镜检查和组织病理学检查，只有2个（4.4%）被鉴定为AFB阳性。在总体统计分析中，发现屠宰牛的身体状况与牛结核病病变显著相关（p < 0.05）。
这一发现提供了在屠宰场屠宰的牛中牛结核病的患病率和结核病变的分布情况，并强调了该地区对该疾病采取切实可行控制策略的必要性。
