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.
Dendrogram and schematic representation of the ribotype profiles obtained by comparison of BstEII ribotype patterns from seven strains of C. diphtheriae. Citrobacter koseri (CIP 105177) served as the molecular weight marker on the agarose gel.
