In terms of the expression of CD163, the three serotypes of A. actinomycetemcomitans studied were capable of inducing an expression statistically significantly higher than the control condition at the two time points of infection (p < 0.0001 for all serotypes), and the differences among serotypes for this marker were statistically significant only at 2 h of infection for serotype c over serotype a (p = 0.0004) without statistically significant differences between the serotypes at 24 h (Figure 3C). The gene discussed is CD163; the disease is infection.