Emerging Infectious Diseases (Feb 2018)

Clusters of Human Infection and Human-to-Human Transmission of Avian Influenza A(H7N9) Virus, 2013–2017

  • Lei Zhou,
  • Enfu Chen,
  • Changjun Bao,
  • Nijuan Xiang,
  • Jiabing Wu,
  • Shengen Wu,
  • Jian Shi,
  • Xianjun Wang,
  • Yaxu Zheng,
  • Yi Zhang,
  • Ruiqi Ren,
  • Carolyn M. Greene,
  • Fiona Havers,
  • A. Danielle Iuliano,
  • Ying Song,
  • Chao Li,
  • Tao Chen,
  • Yali Wang,
  • Dan Li,
  • Daxin Ni,
  • Yanping Zhang,
  • Zijian Feng,
  • Timothy M. Uyeki,
  • Qun Li

DOI
https://doi.org/10.3201/eid2402.171565
Journal volume & issue
Vol. 24, no. 2
pp. 397 – 400

Abstract

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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.

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