Fig. 2

Phylogenetic analysis of STc95 O1:K1 neonatal meningitis E. coli. This phylogenetic tree of STc95 strains was based on 19,547 SNP sites identified by Illumina whole genome sequencing using the Neighbor-Joining method with 100 bootstrap replicates. Subgroup designations (A, B, C,D) are based on the classification of Gordon et al. [9]. Strains with names beginning with the letter S correspond to neonatal meningitis strains. APECO1, S88, and UTI89 were used as reference strains for comparison. The tree was rooted on UPEC strain CFT073. All NMEC strains are ST95 or ST421 except where indicated between brackets. Three strains carried unnamed STs (STUN). FimH alleles are also indicated