结核病从人类向乳牛的可逆性动物传播
概括
分子技术在孟加拉国12.6%的结核素阳性牛中发现了Mycobacterium结核综合体. 调查结果表明,可能有反向动物性传染,这突显了对抗牛结核病需要"一健康"的方法.
科学领域:
- 兽医微生物学 兽医微生物学
- 动物传播疾病 动物传播疾病
- 分子流行病学分子流行病学
背景情况:
- 牛的结核病 (TB) 对动物健康和人类公共健康构成重大威胁.
- 了解牛群中Mycobacterium结核复合体 (MTBC) 的流行率和遗传多样性对于有效的控制策略至关重要.
研究的目的:
- 使用分子方法确定结核素阳性乳牛中Mycobacterium bovis和Mycobacterium tuberculosis的流行率.
- 为了确定与牛结核病相关的风险因素.
- 进行MTBC分离物的遗传学分析.
主要方法:
- 在孟加拉国 (2018-2020年) 三个地区进行了1580头牛的横截面研究.
- 单次皮内比较性宫结核素测试,然后在牛奶和肺组织样本上进行聚合酶链反应 (PCR).
- 多变量逻辑回归用于风险因素分析和桑格测序用于IS6110基因的遗传学分析.
主要成果:
- 简单PCR检测到MTBC在12.6%的样本中.
- 多重PCR检测发现了Mycobacterium bovis在6.3%的样本中,以及Mycobacterium tuberculosis在3.1%的样本中.
- 遗传学分析证实,8种Mycobacterium bovis和4种Mycobacterium tuberculosis分离物与来自孟加拉国的人类分离物保持一致.
结论:
- 这项研究表明,有潜在的反向动物传播的牛对人类的Mycobacterium结核病.
- 调查结果强调了综合监测和"一个健康"的方法对孟加拉国结核病管理的重要性.
- 建议进行进一步的研究,以阐明人类-牛结核病传播的全部程度.
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