Histopathological analysis of the liver. B6, gld, lpr, perf−/−, gzmA×B−/−, and Fas−/− mice were infected i.p. with 105 PFU of LCMV per mouse. Liver sections stained with hematoxylin-eosin at 8 and 15 dpi. Arrowheads indicate the apoptotic cells. Magnification, ×400.