Figure 5.

In representative images, perivascular inflammation lingers around larger pulmonary arteries adjacent to airways (arrowheads), and collagen deposition (blue) in these areas is similar in BALB-STD (A), IFN-γ–STD (B), and STAT6-STD (C) mice but is less than that in the control (D). Although slight inflammation without collagen deposition remains around smaller arterioles near alveolar ducts (arrows) in P. murina–infected mice, it is similar in BALB-STD (E), IFN-γ–STD (F), and STAT6-STD (G) mice but is absent in the control (H). Original magnification, ×200. Scale bar = 50 μm (B and F).