FIGURE 4.

Histological sections of murine lungs from i.t. infected BALB/c mice immunized after 30 days of infection with P10 associated with FliC flagellin, aluminum hydroxide, or cationic lipid. (A) infected, unimmunized control mice, (B) infected and immunized with FliC flagellin plus P10, (C) infected and immunized with aluminum hydroxide plus P10, and (D) infected and immunized with cationic lipid plus P10 after 52 days of infection. Masson’s trichrome staining, ×40 magnification. Blue staining and arrows indicate type I collagen fibers.