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一次剂量皮内狂犬病增强剂增强狂犬病抗体的产生和狂犬病成熟度
Chidchamai Kewcharoenwong1,2,3, Saranta Freeouf1, Arnone Nithichanon2,4
1Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
Medical microbiology and immunology
|May 18, 2024
概括
一次性暴露前狂犬病疫苗 (PrEP) 剂量为高危人群提供长期保护. 增强剂量增强免疫反应和抗体成熟,确保持续的狂犬病免疫力.
科学领域:
- 免疫学 免疫学 免疫学
- 公共卫生 公共卫生
- 兽医医学 兽医医学 兽医医学
背景情况:
- 狂犬病发病率在2018年在泰国达到峰值,需要对高风险群体进行有效的预防.
- 泰国志愿者目前的暴露前预防 (PrEP) 实践可能不足以提供长期免疫力.
- 世界卫生组织 (WHO) 的指导方针建议先前免疫的个人进行皮肤内 (ID) 暴露后预防 (PEP).
研究的目的:
- 评估一次性 PrEP 剂量对于高风险个体的长期免疫保护是否足够.
- 评估一个或两个ID增剂剂量在刺激成熟和持续抗体反应方面的有效性.
主要方法:
- 在不同疫苗接种群体中对免疫性和助推疗效的比较分析.
- 使用CEE-cELISA和间接ELISA测量狂犬病抗体水平和持久性.
- 在增强剂后对抗体激发成熟度的评估.
主要成果:
- 狂犬病抗体在ID PrEP或强剂接种疫苗后持续超过180天.
- 超过95%的参与者达到足够的抗体水平,100%通过间接ELISA检测到.
- 第一个ID增剂剂量启动了狂犬病特异性抗体的激烈成熟.
结论:
- 具有成本效益的,单剂量ID PrEP疗法提供了足够的长期狂犬病抗体水平.
- 一次或两次ID增强剂量足以产生强大的免疫反应和抗体成熟.
- 推用于泰国和发展中国家的高风险人群,在增剂之前建议对抗体进行监测.
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