Figure 5From: Neuropathogenesis of a highly pathogenic avian influenza virus (H7N1) in experimentally infected chickensCodetection of IAV antigen in OSN of the nasal cavity in a chicken infected with H7N1 HPAIV, at 3 dpi. Double immunohistochemistry showing OSN labelled with PGP9.5 (arrowhead). Viral antigen was found in supporting (arrow) and basal cells of the nonsensory epithelium (not stained), but not in OSN. (bar = 10 μm).Back to article page