Fig. 6.

Cellular localization of MHV-JHM viral antigen (A) and NOS II protein (B) in VTA of an acutely infected mouse at 5 days post-infection after immunohistochemical staining utilizing a polyclonal NOS II antibody followed by counterstaining with methyl green. Viral antigen occurs in parenchymal patches, while NOS II positive cells have a conspicuous meningeal and perivascular distribution. NOS II positive cells in the parenchyma often occur singly. (C) NOS II positive cells in the meninges of the hippocampus. Magnification, 25×.