Figure 2
From: Genotyping and biofilm formation of Mycoplasma hyopneumoniae and their association with virulence
HE staining showing pathological changes in M. hyopneumoniae-infected pig lung tissues. 168, 168Â L, XLW2, NJ, and LH: pathological changes on infection with the corresponding strain. Control: negative control. The swelling and hyperplasia of alveolar epithelial cells are indicated by black arrows. Smaller or occluded alveolar lumen and narrowed bronchial lumen infiltrated with inflammatory and deciduous epithelial cells are indicated by yellow arrows. Congestion or hemorrhage around alveoli and bronchi is indicated by white arrows.