Key findings on investigations Abnormal chest CT (100%); (98% bilateral) • ↓PaO2
• ↓PaO2:FiO2 • Abnormal CXR (59.1%)
• Abnormal Chest CT (86.2%)
• Ground glass opacity most common (56.4%)
• No lung imaging findings in 17.9% patients with nonsevere disease and in 2.9% with severe disease CT: Patchy bilateral ground glass opacities