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)
Figure 3. Dendrogram analysis of 27 pulsed-field gel electrophoresis profiles of Bordetella pertussis isolates circulating in China during 1953–2005. The unweighted pair group method with arithmetic mean with 1% band tolerance and 1% optimization settings was used as the clustering method. * indicates international reference strains (17,23); † indicates vaccine strains from China. Vaccine strains P3s10 and CS represent BpCHR6, and vaccine strain 18530 represents BpFINR13.
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