FIGURE 10.

Viability of S. aureus alsS mutant contacting with murine macrophages. S. aureus wild type (black and gray bar) and alsS mutant cells (white and striped bar) were incubated with activated macrophages (black and white bar), and with L-NMMA treated macrophages (gray and striped bar). The number of intracellular S. aureus cells were determined at the indicated times. Error bars represent mean ± SEM (n = 3). Asterisks represent statistically significant data; ^∗P < 0.05, ^∗∗P < 0.01, and ^∗∗∗P < 0.0001.