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.
Frequency of PCR ribotypes of 366 C. difficile isolates during the study period in Tehran. (A) Most commonly identified C. difficile PCR ribotypes. (B) Other C. difficile PCR ribotypes; ribotypes found at a frequency of less than 10 isolates in a year were grouped into the others category.
