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Volume 19, Number 11—November 2013
Research

Use of National Pneumonia Surveillance to Describe Influenza A(H7N9) Virus Epidemiology, China, 2004–2013

Nijuan Xiang, Fiona Havers, Tao Chen, Ying Song, Wenxiao Tu, Leilei Li, Yang Cao, Bo Liu, Lei Zhou, Ling Meng, Zhiheng Hong, Rui Wang, Yan Niu, Jianyi Yao, Kaiju Liao, Lianmei Jin, Yanping Zhang, Qun Li, Marc-Alain Widdowson, and Zijian FengComments to Author 
Author affiliations: Chinese Center for Disease Control and Prevention, Beijing, China (N. Xiang, T. Chen, W. Tu, L. Li, Y. Cao, B. Liu, L. Zhou, L. Meng, Z. Hong, R. Wang, Y. Niu, J. Yao, K. Liao, L. Jin, Y. Zhang, Q. Li, Z. Feng); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (F. Havers, M.-A. Widdowson); Centers for Disease Control and Prevention, USA/China, Beijing (Y. Song)

Main Article

Table 1

Numbers of PUE cases and influenza A(H7N9) virus infections reported by PUE surveillance, mainland China, March 30–May 3, 2013*

Province or municipality No. cases reported No. (%) A(H7N9) positive
Affected, n = 10
Anhui 100 0
Beijing 33 1 (3)
Fujian 17 3 (18)
Henan 11 3 (27)
Hunan 6 2 (33)
Jiangsu 27 20 (74)
Jiangxi 42 4 (10)
Shandong 10 0
Shanghai 468 20 (4)
Zhejiang 288 41 (14)
Unaffected, n = 21 116 0
Total 1118 94 (8)

*PUE, pneumonia of unknown etiology.

Main Article

Page created: October 31, 2013
Page updated: October 31, 2013
Page reviewed: October 31, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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