生态相互作用推动了两种传播病原体Borrelia burgdorferi和Babesia microti的种群动态
Danielle M Tufts1,2,3, Ben Adams4, Maria A Diuk-Wasser3
1Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA, USA.
Proceedings. Biological sciences
|June 26, 2023
概括
垂直传播显著影响白足小鼠中Borrelia burgdorferi (Bb) 和Babesia microti (Bm) 的流行率. 这一发现对于理解和控制这些传播疾病至关重要.
科学领域:
- 生态学和进化生物学
- 流行病学 流行病学
- 数学生物学 数学生物学
背景情况:
- 菌 (Borrelia burgdorferi) (Bb) 和小菌 (Babesia microti) (Bm) 是由传播的动物传染病原体.
- 这些病原体在Ixodes scapularis和Peromyscus leucopus小鼠中共同循环.
- 从历史上看,Bm的流行原因是传输效率和宿主范围较低.
研究的目的:
- 研究共感染动态和垂直传播在塑造Bb和Bm流行模式中的作用.
- 在P. leucopus的自然种群中阐明Bb和Bm之间的共感染动态.
主要方法:
- 使用了多年的,多个位置的纵向数据集.
- 运用数学建模来分析共感染动力学.
- 专注于Peromyscus leucopus作为主要的储宿主.
主要成果:
- 在没有垂直传输的情况下,Bb在比Bm更低的tick数下是可行的.
- 通过垂直传输,Bm在比Bb更低的tick数下变得可行.
- 垂直传播在季节早期对Bm流行有很大影响;同时感染在淋巴儿峰值期间起作用.
结论:
- 垂直传播是Bm流行的一个关键因素,特别是在赛季早期.
- 同感染动态对Bb和Bm的持久性影响有限.
- 未来的研究应该探索Bm垂直传播对环境因素的敏感性,以改善监测和控制.
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