Fig 5. Phylogenetic analysis by Bayesian estimation of the amino acid sequences of tcdB alleles from the three Brazilian clade 2 strains (RT883, 884, and 885).

The distribution of alleles according to different clades is shown on color strip in the right. Posterior probability branch support is denoted by a color code, from red (65% support) to green (100% support). (*) A novel allele (tcdB 23) was identified in RT883, while tcdB alleles 8 and 10 were identified in RT884 and RT885, respectively.