布鲁塞拉在坦桑尼亚的小农奶牛中流通的物种
Isaac Joseph Mengele1,2,3,4, James Miser Akoko3, Gabriel Mkilema Shirima1
1Department of Global Health and Biomedical Sciences, School of Life Science and Bioengineering, The Nelson Mandela African Institution of Science and Technology (NM-AIST), Arusha P.O. Box 447, Tanzania.
Pathogens (Basel, Switzerland)
|September 28, 2024
概括
在坦桑尼亚的奶牛中检测到一种动物传播疾病 - - 牛病,其中Brucella melitensis是最常见的菌株. 这突显了牲畜和公共健康的风险,需要加强生物安全和疫苗接种战略.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 微生物学 微生物学
- 流行病学 流行病学
背景情况:
- 牛病是一种重要的动物传染病,影响畜牧业经济和公共卫生.
- 布鲁塞拉属包括各种物种,其中B. abortus和B. melitensis是牛中的关键病原体.
研究的目的:
- 确定坦桑尼亚小农奶牛中布鲁塞拉菌的分子流行率和物种.
- 确定高发病率地区,并指导未来对菌病的控制策略.
主要方法:
- 一项横截面研究涉及从坦桑尼亚六个地区的1371个农场抽取2048头奶牛样本 (2019年7月至2020年10月).
- 来自血液和阴道抽样的DNA使用qPCR针对IS711基因进行了分析.
- 阳性样本进一步对B. abortus (alkB标志物) 和B. melitensis (BMEI1172标志物) 进行了测试.
主要成果:
- 布鲁塞拉的总体分子患病率为3.5% (95% CI:2.8-4.4).
- 尼贡贝地区的患病率最高,为8.1% (95% CI:4.6-13.0).
- 布鲁塞拉 (Brucella melitensis) 是主要的物种,占阳性病例的66.2%.
结论:
- 在坦桑尼亚的奶牛中,乳病在分子层面上普遍存在,其中B. melitensis构成重大威胁.
- 对B. melitensis来源的进一步研究对于兽医公共卫生至关重要.
- 推实施增强的生物安全,农民教育和有针对性的疫苗接种计划,以控制牛病.
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