Lung auscultation revealed rhonchi, and chest radiography was performed, which was reported as showing no abnormalities (Figure 1).

肺部听诊显示干音， 并进行了胸部 X 片检查， 报告未显示异常（图 1）。

Our case patient initially presented with mild cough and low-grade intermittent fevers, without evidence of pneumonia on chest radiography on day 4 of his illness, before having progression to pneumonia by illness day 9.

我们的病例患者最初表现为轻度咳嗽和低度间歇性发烧， 在他生病的第 4 天胸片上没有肺炎的证据， 然后在第 9 天进展为肺炎。