Both patients reported here showed multiple areas of patchy consolidation and ground-glass opacities in both lungs, with most of the lesions distributed along the bronchial bundles or in the subpleural areas, particularly in the lower lobes. Neither patient showed pleural effusion or lymphadenopathy. In the SARS outbreak in 2003, infected patients exhibited rapid progression of lung lesions, with both lungs showing diffuse infiltration within a short period and producing “white lungs” and mediastinal emphysema (1112). In contrast, these lung lesions are relatively mild and are easily misdiagnosed as bronchopneumonia or any common viral infection. In addition, no obvious fibrosis was found in these cases, which may be related to the short course and mild intensity of the disease in these patients; this speculation remains to be confirmed using subsequent large-scale studies.