Figure 1: Sequential CT images. Three days (a-c) and 2 h (d-f) before the first transfusion of convalescent plasma, axial CT images at different levels and coronal reconstruction show an increase in multiple central and peripheral patchy mixed GGOs with consolidation. One day after the third transfusion of convalescent plasma, chest CT images (g-i) show that the lesions have partially resolved compared with 2 h before the first convalescent plasma treatment. Thirty-three days (j) and approximately 2 months (k and l) after the third transfusion of convalescent plasma, CT images show that the lesions have almost completely resolved. CT: Computed tomography, GGOs: Ground-glass opacities