Competition assays with recombination deficient strains in BALB/c mice.

a<p>Student's t-test comparing CI versus inoculums.</p><p>NS or *, Not significant.</p>b<p>Reciprocal of median CI.</p>c<p>Significantly different (<i>p</i> = 0.001) versus ‡, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004975#pone-0004975-t001" target="_blank">Table 1</a>.</p>d<p>Significantly different (<i>p</i> = 0.0008) versus †, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004975#pone-0004975-t001" target="_blank">Table 1</a>.</p>e<p>Significantly different (<i>p</i> = 0.05) versus ‡, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004975#pone-0004975-t001" target="_blank">Table 1</a>.</p>f<p>Not significantly different (<i>p</i>>0.05) versus †, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004975#pone-0004975-t001" target="_blank">Table 1</a>.</p><p>Strains used: 14028, JS838-45.