FIG. 1.

Pulmonary changes in mice just 80 days after inoculation of P. aeruginosa (A and B), after 80 days of saline treatment (C and D), and after 80 days of ERY treatment (E and F) (hematoxylin-eosin stain; magnifications: A, C, and E, ×17.4, and B, D, and F, ×174). The airways (asterisks) are filled with neutrophils. Mice treated with saline showed the progression of disease, including the further destruction of the epithelium (D, arrows). ERY-treated mice showed the recovery of columnar ciliated cells (F, arrows).