Figure 8From: Acute exposure of mice to high-dose ultrafine carbon black decreases susceptibility to pneumococcal pneumoniaBlood CFU counts in mice treated with either 2× doses of sterile PBS or 2× doses of 500 μg ultrafine-carbon black (UF-CB), then infected intranasally with pneumococci. Blood CFU count was assessed at 24 h post-infection. n = 6, Bar represents mean, *P < 0.05 by unpaired t test.Back to article page