Fig. 4

Chest CT findings of influenza pneumonia. Male, 35 years old, 4 days after onset. Multifocal GGO, partial consolidation and consolidation in both lungs (a–d). Feale, 39 years old, 6 days after onset. Multifocal GGO, partial consolidation and consolidation in the right lower lungs (e, g). tree-in-bud (f), and consolidation (h)