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加的麻疹趋势:18年监测数据的洞察力
Guy Francis Nzengui Nzengui1, Hervé M'boyis Kamdem1, Ayawa Claudine Kombila Koumavor1
1Département de Bactériologie-Virologie, Institut Supérieur de Biologie Médicale, Université des Sciences de la Santé Libreville, Libreville, Gabon.
iScience
|October 31, 2025
概括
由于疫苗接种率低,消除麻疹的努力受到挑战. 未接种疫苗的个人更容易感染麻疹,特别是幼儿,阻碍疾病控制.
科学领域:
- 流行病学 流行病学
- 免疫学 免疫学 免疫学
- 公共卫生 公共卫生
背景情况:
- 麻疹是一种高度传染性的,可以通过疫苗预防的病毒性疾病.
- 推迟实施世界卫生组织的两剂麻疹含有疫苗 (MCV1和MCV2) 计划以及持续的免疫缺口阻碍了消除麻疹的目标.
- 麻疹疫情带来严重疾病和死亡的重大风险.
研究的目的:
- 分析加2006年至2023年期间的麻疹监测数据.
- 为了确定疫苗接种情况对麻疹感染率的影响.
- 确定受麻疹影响的主要人口群体,并评估消除麻疹的挑战.
主要方法:
- 来自加麻疹监测计划的18年监测数据 (2006-2023) 的分析.
- 包括年龄,性别,疫苗接种状态和日期,疾病日期以及抗麻疹免疫球蛋白M (IgM) 状态等变量.
- 使用免疫试验结果计算感染率和关联研究.
主要成果:
- 疑似麻疹病例中有60.6%未接种疫苗.
- 26.1%的疑似病例是实验室确认的.
- 没有接种疫苗的个体显示,抗麻疹IgM阳性 (p < 0.0001) 的可能性是5.9-7.7倍.
- 5岁及以下的儿童占实验室确诊病例的70.8%.
- 15.5%的生育年龄女性确诊患有麻疹病例.
结论:
- 非免疫和免疫不足的人群是加麻疹传播的主要驱动因素.
- 疫苗接种覆盖率低,是实现该地区消除麻疹的重大障碍.
- 有针对性的疫苗接种战略对于控制麻疹疫情和保护弱势群体至关重要.
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