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早期预警信号并不能预测由变暖引起的实验性流行病
Madeline Jarvis-Cross1, Devin Kirk2,3, Leila Krichel1
1Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada.
PLOS global public health
|October 8, 2025
概括
气候介导的流行病的早期预警信号 (EWS) 可能产生错误的阳性. 我们的研究发现,EWS即使在没有流行病的情况下也被检测到,这限制了它们在预测疾病爆发方面的可靠性.
科学领域:
- 生态生态学 生态生态学
- 流行病学 流行病学
- 气候科学 气候科学
背景情况:
- 气候变化影响寄生虫传播和流行病的出现.
- 预测气候介导的流行病对公共卫生和生态稳定至关重要.
- 早期预警信号 (EWS) 是流行病出现的理论预测信号.
研究的目的:
- 实验测试EWS对气候媒介流行病出现的预测能力.
- 在不同温度下的模型疾病系统中分析EWS的时间序列数据.
- 在气候变化对疾病动态影响的背景下,评估EWS的可靠性.
主要方法:
- 利用实验和模拟的时间序列数据来分析大夫尼亚大的疾病传播情况.
- 操纵温度以诱导亚流行病和流行病状态之间的过渡.
- 分析了统计早期预警信号 (EWS) 存在的时间序列.
主要成果:
- 在亚流行性温度下的人群中检测到早期预警信号 (EWS).
- 在接受了引起流行病传播的变暖治疗的人群中也检测到了EWS.
- 在亚流行病和流行病条件下,EWS的检测率相似.
结论:
- 在非流行病条件下对EWS的实验检测表明,假阳性率很高.
- 假阳性可能会限制EWS在预测气候介导流行病方面的实际可靠性和实用性.
- 需要进一步的研究来完善EWS或开发用于准确预测流行病的补充方法.
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