Mr Johnson urged people to act responsibly: " your mild cough can be someone else's death knell" .

“你轻微的咳嗽可能会给别人敲响丧钟。”

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。