Bingqing Zhu, Zheng Xu, Pengcheng Du, Li Xu, Xiaofang Sun, Yuan Gao, and Zhujun Shao
Figure 1. Distribution of Neisseria meningitidis sequence type 4821 clonal complex (CC4821) serogroup B strains in China, 1978–2013. Invasive strains were detected in 5 provinces (red), carriage strains were detected in 9 provinces (blue), and invasive and carriage strains were detected in 5 provinces (gold). Regions where CC4821 strains were not found or where surveillance is not conducted are also shown.