人类乳头瘤病毒感染对形成模型中的疫苗接种策略:一种最佳的控制方法
1Basque Center for Applied Mathematics - BCAM, 48009, Basque Country, Spain; Interdisciplinary Lab for Mathematical Ecology and Epidemiology, University of Alberta, AB T6G 2G1, Alberta, Canada.
Journal of theoretical biology
|November 18, 2024
概括
人类乳头瘤病毒 (HPV) 疫苗接种计划可以优化. 建议在女性接种率较低的地方进行性别中立的疫苗接种,而高接种率的女性专用计划应该专注于增加女性覆盖率.
科学领域:
- 流行病学 流行病学
- 数学生物学 数学生物学
- 公共卫生 公共卫生
背景情况:
- 人类乳头瘤病毒 (HPV) 是一种常见的性传播感染,与多种癌症有关.
- 尽管HPV疫苗有效,但在许多低收入和中等收入国家,接种仍然很慢.
- 优化HPV免疫策略对于预防癌症至关重要.
研究的目的:
- 分析HPV免疫计划,使用对模型来计算性伙伴关系的形成.
- 确定将男性纳入HPV疫苗接种战略的最佳条件.
- 调查性别中立与仅针对女性的疫苗接种计划的有效性.
主要方法:
- 利用一对模型来模拟性伙伴关系的形成.
- 应用最佳控制理论来分析疫苗干预的最佳性.
- 运用Pontryagin的最大原则来实现第一阶的最佳条件.
- 进行了广泛的数字模拟,用于场景分析.
主要成果:
- 建立了最佳控制解决方案存在的正式证据.
- 确定了有利于性别中立疫苗接种计划的条件.
- 证明,在高吸收环境中,增加仅女性接种疫苗的覆盖率更有效.
- 结果表明,基于区域接种疫苗的细微方法.
结论:
- 疫苗接种策略应根据区域接种水平量身定制.
- 性别中立的疫苗接种对于女性HPV疫苗接种率较低的地区是最佳的.
- 持续专注于增加女性疫苗接种覆盖率,在接种率已经很高的地方是有效的.
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