News Release

流行病学模型将呼吸道病毒的传播与罕见的麻痹性疾病关联

Peer-Reviewed Publication

American Association for the Advancement of Science (AAAS)

Epidemiological Model Links Spread of Respiratory Virus to a Rare, Paralyzing Disease (1 of 1)

image: Map of the center of gravity of enterovirus D68 cases in the U.S. predicted by the pathogen extended resolution algorithm, from 2014-2019. This material relates to a paper that appeared in the Mar. 10, 2021, issue of <i>Science Translational Medicine</i>, published by AAAS. The paper, by S.W. Park at Princeton University in Princeton, NJ; and colleagues was titled, "Epidemiological dynamics of enterovirus D68 in the US and implications for acute flaccid myelitis." view more 

Credit: [Credit: S.W. Park <i>et al., Science Translational Medicine</i> (2021)]

自2014年以来,Sang Woo Park和同事利用一种预测算法绘制了美国呼吸道病毒肠病毒D68发病的新趋势。他们的流行病学研究支持将肠道病毒D68与急性弛缓性脊髓炎(AFM)相关联的研究,填补了有关肠道病毒D68在美国如何传播的重大知识空白;AFM是一种罕见且神秘的麻痹性疾病。该分析还表明,在COVID-19大流行期间,保持社交距离的干预措施可能导致了2020年AFM发病率降低。自2012年以来,美国的小儿麻痹症样疾病AFM的病例数一直处于上升态势;AFM会快速导致肢体软弱和脊髓损伤。这种病仍属罕见—美国每年有约500人罹患此病—但研究人员担心这种疾病会蔓延,他们仍不能确定导致该病的原因。肠道病毒D68是主要的候选致病原,它已经在北美引起过呼吸道疾病的爆发,但对该病毒的监测数据很少。Park等人在此用BioFire Syndromic Trends资料库中的数据对美国肠道病毒D68的流行病学进行了建模,并将全国范围内的肠道病毒D68的流行与所报告的实际发生的AFM病例进行了比较。该团队用一种功能强大的算法观察到,肠道病毒D68与AFM之间有很强的相关性:他们预测肠道病毒D68大约每两年会出现一次流行高峰,其峰值直接发生在秋季AFM流行之前。研究人员还预测,在正常情况下,2020年会爆发中等或大型肠道病毒D68疫情,但戴口罩和所采取的其它措施降低了其爆发风险,从而可能促成了所观察到的AFM病例的减少。

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