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.
Pulsed-field gel electrophoresis (PFGE) patterns created by digestion with the enzyme XbaI. Dendrogram showing the level of genetic relatedness based on the unweighted pair-group method using average linkages and the Dice coefficient for S. sonnei strains. The species, original number, origin, year, and sources of the stains are shown.
