Fig. 2.

Serial HRCT findings in patient 2. a The 3rd day from admission (2020 Feb 23), chest high-resolution computed scan (HRCT) showed diffused ground-glass opacities (GGO) and a subpleural consolidation, and air trapping in the left upper lung. b After using corticosteroids for 6 days (2020-02-29), HRCT showed an obvious absorption of consolidation with mild diffused GGO and a little consolidation with subpleural distribution. c Fourteen days later (2020 Mar 08), HRCT showed patchy consolidation in the upper lung and the left upper lung. d Twenty-four days later (2020 Mar 17), HRCT showed mild diffused mild GGO and air trapping in the left upper lung and right lower lung