FIG. 3.

Hematoxylin and eosin staining of lung sections. Whole lungs from C57BL/6 (A and E), BALB/c (B and F), A/J (C and G), and C3H/HeJ (D and H) mice were harvested at day 9 p.i. with MHV-1. The lungs were fixed in 10% neutral buffered formalin, embedded in paraffin, and sectioned prior to being stained with hematoxylin and eosin. Final magnification, ×40 (A to D) and ×200 (E to H). The images are representative of lung sections obtained from two separate experiments (n = 5 to 8 mice per group).