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.
Hospital-onset Clostridium difficile infection rates (per 1,000 patient-days) among participating centers stratified by diagnostic test used. EIA, enzyme immunoassay; HA-CDAD, hospital-acquired C. difficile–associated diarrhea; PCR, polymerase chain reaction.
