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.
Scores for Helicobacter pylori density evaluated by histology at 4, 12, and 24 weeks after inoculation with H pylori. Mean (SEM) values are presented. †p<0.05 compared with the cagG knockout mutants, ‡p<0.05, ‡‡p<0.01 compared with the virD4 knockout mutants.
