Chest CTs of 6 patients with pneumonia. (A1, B1, C1, D1, E1, and F1) Chest CT before the administration of CAZ-AVI in patient 2, 3, 4, 5, 8, and 9; (A2, B2, C2, D2, E2, and F2) chest CT after the administration of CAZ-AVI in patient 2, 3, 4, 5, 8, and 9. CT, computed tomography; CAZ-AVI, ceftazidime/avibactam.