Fig. 1.

Dendrogram based on eight VNTR markers of B. anthracis strains from Cameroon (this work) and characteristic strains representing all clades and major clusters as reported previously (6, 12, 15). Strains from western and central Africa are boxed. The dendrogram was generated by clustering using the unweighted pair group method with arithmetic means. The scale bar indicates genetic distance. The genetic distance is presented as the absolute number of differences in marker alleles among genotypes.