Emerg Infect Dis. 2018 Feb;24(2):397-400. doi: 10.3201/eid2402.171565. Epub 2018 Feb 17.
To detect changes in human-to-human transmission of influenza A(H7N9) virus, we analyzed characteristics of 40 clusters of case-patients during 5 epidemics in China in 2013-2017. Similarities in number and size of clusters and proportion of clusters with probable human-to-human transmission across all epidemics suggest no change in human-to-human transmission risk.
为了检测甲型 H7N9 流感病毒在人际间传播的变化情况,我们分析了 2013 年至 2017 年中国 5 次流感疫情期间 40 起病例群集的特征。各次疫情中,病例群集数量和规模相似,且具有人际间传播可能性的病例群集比例也相似,这表明人际间传播风险没有变化。