Fig. 1.

Hierarchical levels at which the genomic diversity of B. anthracis was studied. (1) Sequenced isolates originating from livestock carcasses sampled throughout the anthrax hyperendemic NCA, northern Tanzania, (shown as grey dots in this panel) were categorized into four geographical groups (coloured circles); (2) a subset of these isolates was from spatio-temporally linked pairs of carcasses (n=4, represented by grey shapes in panel 1), referred to as epidemiological clusters; (3) multiple isolates (n=2–4; represented by asterisks) were sequenced from individual carcasses, either originating from multiple sample types (e.g. tissue and blood), and/or multiple isolates sequenced from a single sample. The shape file for the NCA was provided by Tanzania National Parks (TANAPA) [60].