在同情性疾病转型群体中,相反的同步模式
P Rohani1, D J Earn, B T Grenfell
1Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. pej@zoo.cam.ac.uk
概括
接种疫苗使麻疹流行从常规变为不规则,而百日咳流行变得常规. 传染病动态中的这些对比模式是由疾病如何对环境噪音作出反应,影响公共卫生战略来解释的.
科学领域:
- 流行病学 流行病学
- 数学建模的数学建模
- 公共卫生 公共卫生
背景情况:
- 在广泛接种疫苗之前,英国城市的麻疹流行病是定期和同步的.
- 相反,在接种疫苗之前,百日咳流行病在空间上是不连贯的和不规则的.
- 疫苗时代已经改变了这两种疾病的空间和时间流行病模式.
研究的目的:
- 调查疫苗接种前后英国麻疹和百日咳的不同流行动态.
- 为了建模动态噪声对同情型变种群的流行病模式的影响.
- 探索对疫苗接种策略和比较疾病生态学的影响.
主要方法:
- 历史麻疹和百日咳流行病数据在英国城市的比较分析.
- 开发和应用数学模型来模拟疾病传播和对噪音的反应.
- 检查不同时代的流行病的空间相关性和规律性.
主要成果:
- 接种疫苗后,麻疹流行病从规律,同步的模式转变为不规则的,与空间无关的.
- 百日咳流行病出现了逆转,在接种疫苗后变得规律和同步.
- 对动态噪音的模拟疾病特异性反应可以重现这些观察到的对比模式.
结论:
- 流行病同步和规律性的观察到的转变可以通过对环境随机性的不同反应来解释.
- 比较动态研究对于理解疾病生态和为公共卫生干预提供信息具有强大作用.
- 研究结果强调了疫苗接种,疾病特征和流行病行为之间的复杂相互作用.
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