Figure 2
From: The tree shrew provides a useful alternative model for the study of influenza H1N1 virus
Clinical pathology of infected tree shrew. (A) lung from tree shrew challenged with A/PR8/34 virus with interstitial pneumonia, inflammatory cell infiltration, hemorrhage, edema, and lung exudate interval; (B) lung of tree shrew challenged with A/Guangzhou/GIRD/02/09 virus with interstitial pneumonia; (C) lung of tree shrew challenged with swine influenza virus A/Guangzhou/GIRD/07/09 with interstitial pneumonia, interstitial edema and hyperemia; (D) control lung tissue; (E) Trachea from tree shrew challenged with A/Guangzhou/GIRD/02/09 virus, with destruction of ciliated epithelia and inflammatory cell infiltration; (F) control trachea tissue. Images A-D were taken at 200× magnification, and E-F at 400 × magnification.