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.
CITATION STYLE
Zhou, L., Chen, E., Bao, C., Xiang, N., Wu, J., Wu, S., … Li, Q. (2018, February 1). Clusters of human infection and human-to-human transmission of avian influenza A(H7N9) virus, 2013-2017. Emerging Infectious Diseases. Centers for Disease Control and Prevention (CDC). https://doi.org/10.3201/eid2402.171565
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