Effect of Vaccination on Bordetella pertussis Strains, China
Liu Zhang1, Yinghua Xu1, Jianhong Zhao, Teemu Kallonen, Shenghui Cui, Yunqiang Xu, Qiming Hou, Fengxiang Li, Junzhi Wang, Qiushui He, and Shumin Zhang
Author affiliations: National Institute for the Control of Pharmaceutical and Biological Products, Beijing, People’s Republic of China (L. Zhang, Y. Xu, S. Cui, Q. Hou, F. Li, J. Wang, S. Zhang); Hebei Medical University, Shijiazhuang, PRC (J. Zhao); The Second Hospital of Shijiazhuang City, Shijiazhuang (Y. Xu); National Institute for Health and Welfare, Turku, Finland (T. Kallonen, Q. He); University of Turku, Turku (T. Kallonen)
Appendix Figure 1. Distribution of the Bordetella pertussis isolates collected during 1953-2005 in China. Places where the isolates were recovered are indicated by shading, and the numbers of isolates obtained from each location are provided within parenthesis. Of the 96 isolates studied, no information about origin was available for no. 23.
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