FIG. 1.
Average magnitude of invasion ± standard error of the mean of pigeon- and human-derived strains of variant Copenhagen into Caco-2 cells. The results represent the percentages of bacteria recovered from the inoculum.
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.