Figure 7

Histopathological examination of lung and liver sections of mice following KP challenge. A, C The lungs and liver of PBS mock-immunized mice infected with KP were analyzed by histochemistry after 5 days of infection. The arrow indicates infiltrated pulmonary interstitial widening, hemorrhage and inflammatory cell infiltration. The sections were counterstained with H&E. B, D The lungs and liver of PhoE immunized mice infected with KP were examined. The arrow indicates inflammatory cell infiltration. Scale bars = 100 μm.