Immunomodulatory Activity and Protective Effects of Polysaccharide from Eupatorium adenophorum Leaf Extract on Highly Pathogenic H5N1 Influenza Infection

Figure 4

The lung histopathology of H5N1 infected mice. Representative lung sections from EAP group ((a), (b)) and PBS group ((c), (d)) at day 3 postinfection were stained with H & E. The solid arrows indicate interstitial edema and inflammatory cellular infiltration around small blood vessels. The unshaded arrows indicate a dropout of mucous epithelium in bronchioles and inflammatory cellular infiltration.