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Fig. 3 | BMC Veterinary Research

Fig. 3

From: Comparison of the virulence of three H3N2 canine influenza virus isolates from Korea and China in mouse and Guinea pig models

Fig. 3

Histopathological lesions in lung samples from mice infected with the four virus strains at 7 dpi. Histopathological findings in the lungs of mice at 7 days post-inoculation with 106 EID50/mL of the JS/10, KR/07, MV/12 and CA/09 strains. All inoculated groups demonstrated histopathological pneumonic lesions. (A) – (E) are representative microscopic images of the histopathological pneumonic lesions from each group (X100). (A) JS/10 and (B) KR/07 resulted in mild lymphocyte infiltration and congestion. (C) MV/12 and (D) CA/09 resulted in mild lymphocyte infiltration and moderate congestion and hemorrhaging. (E) Lung tissue in the normal state

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