Review of an Influenza Surveillance System, Beijing, People’s Republic of China
Peng Yang, Wei Duan, Min Lv, Weixian Shi, Xiaoming Peng, Xiaomei Wang, Yanning Lu, Huijie Liang, Holly Seale, Xinghuo Pang, and Quanyi Wang
Author affiliations: Beijing Center for Disease Prevention and Control, Beijing, People’s Republic of China (P. Yang, W. Duan, M. Lv, W. Shi, X. Peng, X. Wang, Y. Lu, H. Liang, X. Pang, Q. Wang); University of New South Wales, Sydney, New South Wales, Australia (H. Seale)
Figure 3. Weekly influenza-like illness (ILI) counts by age group during the 2007–08 influenza season, Beijing, People’s Republic of China.
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