Fig. 3

Chest CT images of COVID-19 cases. GGO, patchy ground-glass opacity; RR, respiratory rate; BP, blood pressure. A Chest CT image of a patient from The United Kingdom on the 1st day of hospitalization showing patchy ground-glass opacity (GGO) in the subpleural area of the left lower lobe (dry cough, no dyspnoea, no supplementary O₂ required, SpO₂ 98%, RR 18 times/min, BP 151/66 mmHg). B Chest CT image of a patient from America on the 1st day of hospitalization showing multiple patchy and spherical GGOs in the lower lobe of the bilateral lungs with interlobular septal thickening (fever, sore throat, no dyspnoea, no supplementary O₂ required, SpO₂ 96%, RR 20 times/min, BP 110/70 mmHg). C Chest CT image of a patient from The United Kingdom on the 1st day of hospitalization showing multiple patchy consolidations and GGOs in the left lung (fever, dry cough, no dyspnoea, no supplementary O₂ required, SpO₂ 97%, RR 18 times/min, BP 124/67 mmHg). D Chest CT image of a patient from Spain on the 1st day of hospitalization showing multiple patchy GGOs and early consolidation in the bilateral lungs (fever, dyspnoea, supplementary O₂ required 2 L/min by nasal cannula, SpO₂ 97%, RR 21 times/min, BP 127/86 mmHg)