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.
A SNP-based phylogenetic tree annotated by year of isolation, MLST, resistance score and number of carried resistance genes (colored bands from left to right, respectively). Median resistance score and median number of resistance genes were used as cutoffs to categorize the isolates
