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. 2017 Nov 24;7:16280. doi: 10.1038/s41598-017-16139-1

Figure 4.

Figure 4

Histopathology analysis. Lungs of the infected mice were fixed with formalin, embedded in paraffin and stained with hematoxylin and eosin. (Arrow a): alveolar wall thickening; (arrow b): epithelial cell shedding; (arrow c) lymphocyte infiltration; (arrow d) alveolar cavity decreasing or even disappearing; (arrow e) epithelial cell swelling and rarefaction of cytoplasmic structures.