Chromosome and Plasmid Features of Two ST37 Strains Isolated in China Reveal Distinct Multidrug Resistance and Virulence Determinants.

ST37 is an emerging and prevalent multilocus sequence type and represents a lineage of clinical significance. This study aimed to characterize two epidemic ST37 strains, CD161 and CDT4. CD161 acquires a chromosome and two distinct plasmids, pCD161-L, sharing high similarity with phage, and pCD161-S, while CDT4 has a chromosome and a plasmid pCDT4 identical to pCD161-S.