儿童的疫苗接种状况和A型肝炎免疫力:来自土耳其的大规模研究的见解
Metin Yigit1,2, Furkan Kalayci3
1Department of Pediatrics, Yildirim Beyazit University, Ankara Bilkent City Hospital, Bilkent, Ankara, 06800, Turkey. metinyigit.md@gmail.com.
BMC infectious diseases
|January 14, 2025
概括
肝炎A疫苗接种对儿童至关重要,完全接种疫苗的个人表现出更高的免疫力. 需要有针对性的努力来提高未接种疫苗的儿童的保护,这些儿童的抗体水平较低,风险增加.
科学领域:
- 儿科免疫学 儿科免疫学
- 疫苗学 疫苗学 疫苗学
- 公共卫生 公共卫生
背景情况:
- 甲型肝炎仍然是一个公共卫生问题,特别是在卫生条件差的地区.
- 土耳其在2011年引入了甲型肝炎疫苗接种,改善了免疫力,但留下了疫苗接种缺口.
- 较年长,未接种疫苗的儿童代表了持续免疫缺口的脆弱群体.
研究的目的:
- 根据疫苗接种情况,评估儿童的血清阳性率和抗体水平.
- 发现儿童的免疫缺陷,特别是那些出生于土耳其引入甲型肝炎疫苗之前的儿童.
- 评估不同年龄和疫苗接种群体对甲型肝炎疫苗接种的免疫反应.
主要方法:
- 分析了9858名儿科患者的数据 (2019年8月 - 2024年3月).
- 将疫苗分为四组:接种不足,接种单剂量疫苗,完全接种疫苗和未接种疫苗.
- 测量和统计分析血清阳性率和抗体水平.
主要成果:
- 在完全接种疫苗的儿童中,血清阳性达到93%,而未接种疫苗的儿童中为63%.
- 在完全接种疫苗的儿童中,抗体标位显著更高 (p < 0.001).
- 在未接种疫苗的组中,随着年龄的增加,观察到抗体水平的显著下降 (r = -0.365,p < 0.001).
结论:
- 有针对性的干预措施对于解决老年未接种疫苗的儿童疫苗接种缺口至关重要.
- 未接种疫苗的儿童免疫水平较低,凸显了加强公共卫生措施的必要性.
- 结果支持改善疫苗接种范围,以加强甲型肝炎的保护.
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