Fig. 1

Geographical distribution of B. anthracis Ames lineage strains in China. The blue areas indicate the provinces with Ames lineage strains outbreaks. Red and green dots indicate the counties where bacterial cultures were isolated and analyzed. The red dots represent the strains isolated from 2007 to 2018, and the green dots represent the strains isolated before 2007. The sources and year of isolation are listed in brackets. We used ArcGIS version 10.0 (ESRI, USA) and Photoshop CS 8.0.1 (Adobe Systems Incorporated, USA) to plot the map