Fig. 5From: Canine influenza virus coinfection with Staphylococcus pseudintermedius enhances bacterial colonization, virus load and clinical presentation in miceDegree of lung injury present in mice after infection with CIV alone, S. pseudintermedius alone, or both. The lungs were assigned a grade from 0 to 3 based on the histological character of the lesions. Analysis of variance (ANOVA) was performed for the statistical analysis. *, P < 0.05, or **, P < 0.01Back to article page