Journal of medical entomology. 2024 Dec 17:tjae147. doi: 10.1093/jme/tjae147 Q12.02025
Molecular and niche modeling approaches to identify potential amplifying hosts for an emerging tick-borne pathogen, Rickettsia rickettsii subsp. californica, the causative agent of Pacific Coast tick fever
利用分子和生态位模型方法鉴定可能的宿主,以放大新出现的蜱传病原体立克次氏体的新加利福尼亚亚种(引起太平洋沿岸蜱热) 翻译改进
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DOI: 10.1093/jme/tjae147 PMID: 39688497
摘要 中英对照阅读
太平洋岸壁虱热是一种最近在加利福尼亚州描述的由斑疹热群立克次体Rickettsia rickettsii subsp. californica(以前称为Rickettsia 364D)引起的虫媒人畜共患病,该病通过太平洋岸壁虱Dermacentor occidentalis传播。像许多新兴的媒介传播疾病一样,关于这种立克次体在传播周期、潜在宿主贡献以及地理分布方面的知识仍然有限。我们结合分子分析和比较空间生态位模型来识别可能参与这一病原体传播循环的脊椎动物宿主。我们在三种哺乳动物物种(Otospermophilus beecheyi、Lepus californicus 和 Sylvilagus audubonii)中发现了R. rickettsii californica DNA。这是首次记录到在哺乳动物中检测到R. rickettsii californica,这可能表明这些物种可能是这种人类病原体的潜在放大宿主。未感染和感染D. occidentalis 的物种生态位模型识别出加利福尼亚沿岸和内华达山脉丘陵地区的高适宜性区域。这些发现支持了这样一种假设:在受感染壁虱分布地区,放大宿主体(s)可能支持比该壁虱其他分布范围更高的感染率。我们从博物馆记录构建了潜在宿物种群生态位模型(SDMs),并使用栖息地适宜性的重叠统计学方法将它们与R. rickettsii californica受感染壁虱的SDMs进行了比较。我们发现,受感染壁虱与加州地松鼠(O. beecheyii)有高于零的重叠,并且与其他两种兔形目物种之间存在趋势性的但非显著性重叠。结合分子和生态位模型可能是一种识别参与新兴蜱传人畜共患病维持的物种的有效方法。
关键词: 太平洋岸壁虱热;比较生态位相关性;环境生态位建模;物种生态位模型。
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期刊名:Journal of medical entomology
缩写:J MED ENTOMOL
ISSN:0022-2585
e-ISSN:1938-2928
IF/分区:2.0/Q1