揭开沉默的威胁:通过显微镜和循环介导的同热放大来调查埃塞俄比亚戈戈拉的无症状菌感染
Tena Cherkos1, Adane Derso1, Banchamlak Tegegne2
1Department of Medical Parasitology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
PloS one
|March 6, 2025
概括
无症状的Plasmodium感染是疟疾传播的重要储库. 高灵敏的循环介导同热放大 (LAMP) 方法比显微镜揭示了更多的感染,这对于疟疾控制至关重要.
科学领域:
- 疟疾学 疟疾学
- 分子诊断学 分子诊断
- 传染病流行病学 传染病流行病学
背景情况:
- 无症状的Plasmodium携带者代表了大量的,往往未被发现的疟疾寄生虫储存库.
- 像显微镜和快速诊断测试 (RDTs) 等标准诊断方法低估了疟疾负担,因为检测低水平寄生虫病的局限性.
- 敏感的分子技术,如循环介导同热放大 (LAMP),对于准确评估Plasmodium感染至关重要.
研究的目的:
- 确定埃塞俄比亚西北部戈戈拉的无症状菌感染 (API) 的流行率.
- 评估光显微镜对API的诊断性能,与高度敏感的LAMP方法相比.
- 评估APIs作为研究区域疟疾传播的潜在储库的作用.
主要方法:
- 在埃塞俄比亚的戈戈拉进行了一项基于社区的横截面调查.
- 采用多阶段采样技术,选择了115个家庭,每户1名参与者.
- 用光显微镜和循环介导同热放大 (LAMP) 分析毛细血管血液样本以检测菌.
主要成果:
- 通过光显微镜,API的患病率为6.1%,通过LAMP为11.3%.
- 与LAMP相比,显微镜显示了53.8%的灵敏度和100%的特异性.
- 由LAMP检测到的六种Plasmodium感染被显微镜忽略了,这表明显著的不足检测.
结论:
- 确定了相当一部分无症状的等离子体感染,突出显示了它们作为疟疾传播的储库的作用.
- 显微镜显著低估了API的流行率,错过了大量的感染.
- 疟疾控制和消除策略必须包括检测和管理亚微观感染的方法,才能有效.
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