在有集团的网络中进行流行病控制
L D Valdez1, L Vassallo1, L A Braunstein1,2
1Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR), Departamento de Física, FCEyN, Universidad Nacional de Mar del Plata-CONICET, Mar del Plata 7600, Argentina.
Physical review. E
|June 17, 2023
概括
家庭和学校等社会单位是控制流行病的关键. 这项研究模型在社交网络上启动了隔离,发现它可以突然抑制疫情爆发或显示连续的过渡,揭示了复杂的流行动态.
科学领域:
- 流行病学 流行病学
- 网络科学 网络科学
- 数学建模的数学建模
背景情况:
- 社会单位 (家庭,学校) 显著影响流行病的传播.
- 有效的控制策略对于缓解传染病爆发至关重要.
- 了解复杂网络上的流行病动态是一个活跃的研究领域.
研究的目的:
- 调查一种流行病模型,在与集团的网络中结合迅速的隔离措施.
- 分析流行病抑制的过渡点和阶段过渡特性.
- 在流行病模型中探索逆向分叉的发生.
主要方法:
- 在具有集群结构的网络上开发流行病模型.
- 根据检测概率 (f) 实施即时隔离策略.
- 使用数值模拟和分析方法来研究流行病行为和阶段过渡.
主要成果:
- 流行病爆发在临界隔离概率 (f_c) 时被突然抑制.
- 小规模的疫情表现出第二阶段过渡的特征,接近f_c.
- 该模型展示了不连续和连续相位过渡特性,包括向后分叉.
结论:
- 及时隔离策略有效控制集群网络中的流行病.
- 该模型准确地捕捉了流行病动态中复杂的相位过渡行为.
- 逆向分叉表明在流行病控制策略中可能会产生复杂的结果.
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