(A) Representative H&E stains of lung section at 20x magnification from C57BL/6 and iNOS knockout male mice either uninfected (top panels) or infected with ~1 × 108 CFU at 4 h (middle panel) and 8 h (bottom panel) post-infection.
(B) Representative H&E stains of lung sections at 10x (top panel) and 40x (bottom) magnification from C57BL/6 and iNOS knockout male mice at 8 h post-infection. Arrows indicate bacterial clusters.
See also Figure S6 and Table S2.