Chen Z, Fan H, Cai J, et al. - Researchers obtained case data of patients who received a diagnosis of COVID-19 (coronavirus disease) infection in Hangzhou City, Zhejiang Province in China, to compare chest HRCT (high-resolution computed tomography) lung signs evident in scans of differently aged patients with COVID-19 infections. Four age groups (<18 years, 18-44 years, 45-59 years, ≥ 60 years) were compared. In 98 patients with confirmed COVID-19 infections, the main HRCT signs identified were small patchy, ground-glass opacity (GGO), and consolidations. More bilateral lung, lung lobe, and lung field involvement as well as greater lesion numbers were detected among patients aged 45–59 years and aged ≥60 years vs those <18 years. In patients aged 45-59 years, and ≥60 years, more commonly experts found GGO accompanied with the interlobular septa thickening or a crazy-paving pattern, consolidation, and air bronchogram sign, relative to those aged <18 years, and aged 18-44 years. Overall, the observed chest HRCT manifestations in patients with COVID-19 were associated with patient’s age, and younger patients may exhibit milder HRCT signs.