Figure 2

Assessment of pneumonia during infection using micro-CT. Lung abnormalities during infection were observed until 10 dpi using micro-CT. (A) CT images showed pneumonia caused by each virus at 4, 7, and 10 dpi. (B) CT severity score exhibited level of lung abnormalities. (C) Mean of CT severity score ± SD (n = 4 per group). Observation was performed every 2 days until 10 dpi. P values were calculated using Tukey’s multiple-comparison test (*P < 0.05; between SARS-CoV-2 and SARS-CoV-2/IAV).