在来自印度卡纳塔克州的患者中,灌木伤寒IgM和IgG抗体的持续性
Kiran Chunduru1, Manoj A R1, Subhadra Poornima2
1Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Annals of medicine
|March 3, 2025
概括
这项研究为草伤寒IgM和IgG ELISA测试建立了新的诊断截止点. 这些抗体在至少18个月内仍可检测,从而提高了草原伤寒的诊断准确性.
科学领域:
- 传染性疾病 传染性疾病
- 免疫学 免疫学 免疫学
- 流行病学 流行病学
背景情况:
- 灌木伤寒的诊断标准,特别是IgM和IgG抗体的寿命,需要进一步澄清.
- 确定酶相关免疫吸收试验 (ELISA) 的特定区域诊断截止值对于准确的草伤寒诊断至关重要.
研究的目的:
- 为了确定区域特定的光学密度 (OD) 值切线,用于灌木伤寒IgM和IgG ELISA.
- 为了研究草原伤寒IgM和IgG抗体随着时间的推移的持久性.
主要方法:
- 一项前性队列研究涉及被诊断患有灌木风的患者和印度马尼帕尔的健康志愿者.
- 使用接收器操作特征 (ROC) 曲线分析来确定IgM和IgG的最佳ELISAOD切断值.
- 在诊断后长达18个月的时间内,对抗体水平进行了监测.
主要成果:
- 灌木伤寒IgM的最佳OD切线为1.309 (98.7%的敏感度),IgG的最佳OD切线为0.9 (71.7%的敏感度,93.5%的特异性).
- 在18个月后,擦伤伤寒IgM和IgG抗体在32%和75.4%的患者中分别保持在新的切断值以上.
结论:
- 建立了草伤寒IgM和IgG ELISA的新衍生的区域诊断截止值.
- 擦拭伤寒IgM和IgG抗体在这些切断值以上持续长达18个月.
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