Similar pathological findings in lungs of Wt and TM^pro/pro mice during Klebsiella pneumonia. Histologic sections of lungs of Wt (A) and TM^pro/pro (B) mice 24 hours after inoculation with K pneumoniae (HE staining). Fibrin(ogen) immunostaining of lung 24 hours after inoculation with K pneumoniae in Wt (C) and TM^pro/pro (D) mice. Original magnification, × 50. Representative slides are shown from a total of 5 mice per group.