Figure 4. Persistence of A. actinomycetemcomitans, A. actinomycetemcomitans lctD ^-, and A. actinomycetemcomitans apiA ^- in mono- or co-culture in a murine abscess model.

A. Bacterial colony forming units per abscess. Wilcoxon signed-rank test values are: * p<0.02, ** p<0.01, *** p<0.008. B. Abscess weights 6 days post-inoculation. Error bars represent 1 standard error of the mean, n = 9. p<0.05 for wt A. actinomycetemcomitans in mono- and co-culture via Student's t-test.