Figure 6

Photomicrographs of Alcian blue-stained sections of the lung in (LTC) group, 21 d p.i. (Alcian blue stain). (a) Obstruction in the bronchioles manifested by live neutrophils embedded in the mucus secretion, blue coloration occluding the lumen (Bar = 200 μm); (b) High power of (Figure 6a) to show neutrophils (n) embedded in the mucus secretion (m) (Bar = 50 μm).