Lack of Airborne Transmission during Outbreak of Pandemic (H1N1) 2009 among Tour Group Members, China, June 2009
Ke Han
1, Xiaoping Zhu
1, Fan He
1, Lunguang Liu, Lijie Zhang, Huilai Ma, Xinyu Tang, Ting Huang, Guang Zeng

, and Bao-Ping Zhu
Author affiliations: Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China (K. Han, F. He, L. Zhang, H. Ma, G. Zeng, B.-P. Zhu); Guangdong Center for Disease Control and Prevention, Guangzhou, People’s Republic of China (K. Han); Zhejiang Center for Disease Control and Prevention, Hangzhou, People’s Republic of China (F. He); Sichuan Center for Disease Control and Prevention, Sichuan, People’s Republic of China (X. Zhu, L. Liu, X. Tang, T. Huang)
Main Article
Table 1
Secondary attack rate for influenza A pandemic (H1N1) 2009, by travel history, Sichuan Province, China, June 2009
Group |
Total no. persons |
No. cases |
Attack rate, % |
Passengers on flight CA428 (Hong Kong–Chengdu), June 2 |
91 |
0 |
0 |
Passengers on flight CZ6659 (Chengdu–Jiuzhaigou), June 3 |
110 |
7 |
6.4 |
Members of the tour group |
23 |
7 |
30 |
Not members of the tour group |
87 |
0 |
0 |
Members of the tour group, not passengers of flight CZ6659 (Chengdu–Jiuzhaigou), June 3 |
7 |
2 |
29 |
Passengers on flight CZ6660 (Jiuzhaigou–Chengdu), June 5, not members of the tour group |
87 |
1 |
1.1 |
Main Article
Page created: December 08, 2010
Page updated: December 08, 2010
Page reviewed: December 08, 2010
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.