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.
Virulence of B. abortus 2308 pBBR4 (black squares), the pcs mutant (open triangles), and the complemented pcs pBBR-pcs strain in BALB/c mice. Mice were infected by intraperitoneal injection. Individual spleen CFU values were plotted, and the horizontal bars represent the median CFU for each treatment group. *, P < 0.05 (compared to the group that received the wild-type strain). Statistical analysis was performed with a Kruskal-Wallis test. p.i., postinfection.
