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.
Phylogenetic tree between CTX-M/CMY-2 producing E. coli isolates based on core-genome alignment The core-genome phylogenetic tree was generated using Parsnp. The isolates from different farms were indicated by different colored dots. Environmental isolates were marked with an asterisk (∗). The scale bars indicate the mean numbers of nucleotide substitution per site.
