Skip to main content
. Author manuscript; available in PMC: 2008 Aug 15.
Published in final edited form as: Toxicol Appl Pharmacol. 2007 May 10;223(1):1–9. doi: 10.1016/j.taap.2007.04.014

Figure 4.

Figure 4

Histopathology after S. pneumoniae infection with and without antecedent priming and particle exposure. Panels A and B: Little or no acute inflammation (PMN influx) was seen 24 hours after S. pneumoniae infection in control animals (PBS only before infection, PPB, Panel A, and IFN-γ only before infection, IPB, Panel B). Panels C and D: Moderate to severe inflammation (PMN influx) was seen 24 hours after S. pneumoniae infection in particle treated animals (no priming and CAPs exposure before infection, PCB, Panel C, and IFN-γ-priming and CAPs-exposure before infection, ICB, Panel D).