(A) Mouse percent mortality of C57BL/6 (black line, n=15) and congenic iNOS−/− (red line, n=15) mice at indicated time points post-infection with S. aureus Newman (~5 × 107 CFU).
Kaplan-Meier plot, *p<0.05.
(B) Mouse body surface temperature, bacterial burden (CFU per lung), and pro-inflammatory cytokines levels of C57BL/6 (black circles, n=10) and congenic iNOS−/− (red circles, n=10) mice measured at 8 h post-infection. Two inocula are indicated for infections with wild-type S. aureus (~5 × 107 or ~1 X 108 CFU) and one inoculum for mice infected with an agr mutant (~5 × 107 CFU).
Individual values are plotted with horizontal lines showing medians of groups, Mann-Whitney U test, *p<0.05.
See also Figure S4–S5.