Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Phylogeny of Escherichia coli and sequence type complex (STc) 131. The phylogram is illustrative only; branch lengths are not to scale, and tree conformation is approximate. Phylogenetic groups are identified with brackets. Each STc included in the present study is labeled; unlabeled branches represent other (unstudied) STs within the indicated phylogenetic groups. Stippled rectangle, STc131; open rectangle within stippled rectangle, ST131-H30 subclone.
