Two clustered cases of confirmed influenza A(H7N9) virus infection, Beijing

Authors

  • Daitao Zhang Beijing Centers for Disease Prevention and Control & Beijing Centers for Disease Preventive Medical Research
  • Yi Zhang Beijing Centers for Disease Prevention and Control & Beijing Centers for Disease Preventive Medical Research, Dongcheng District
  • Peng Yang Beijing Centers for Disease Prevention and Control & Beijing Centers for Disease Preventive Medical Research, Dongcheng District
  • Zhenquan Zhang Yanqing District Centers for Disease Prevention and Control, Yanqing District
  • Quanyi Wang Beijing Centers for Disease Prevention and Control & Beijing Centers for Disease Preventive Medical Research, Dongcheng District

DOI:

https://doi.org/10.31646/gbio.30

Keywords:

avain influenza, H7N9, epidemiology

Abstract

During April 1-8, 2017, a cluster of two laboratory-confirmed A(H7N9) influenza virus infections occurred in Yanqing district, Beijing. None of the 10 close contacts developed symptoms during the medical observation period after their last exposure. Throat swabs collected from close contacts all tested negative for influenza virus. Our study showed that the highly pathogenic avian influenza virus has spread to northern China, where the number of reported cases was relatively small, but the virus is not capable of sustained human-to-human transmission yet. In Beijing, informal live poultry trading in rural areas plays an important role in transmitting highly pathogenic H7N9 virus from poultry to human. Enhanced surveillance in ILI and SARI patients is required to strengthen the case detection capabilities during epidemic periods.

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Published

2019-06-02

How to Cite

Zhang, D., Zhang, Y., Yang, P., Zhang, Z., & Wang, Q. (2019). Two clustered cases of confirmed influenza A(H7N9) virus infection, Beijing. Global Biosecurity, 1(1). https://doi.org/10.31646/gbio.30

Issue

Vol. 1 (2019)

Section

Research Articles

License

Copyright (c) 2019 The Author(s)

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Received 2019-05-16
Accepted 2019-05-21
Published 2019-06-02