NPR

We Still Don't Fully Understand The Label 'Asymptomatic'

A new study reveals that even patients who are reportedly asymptomatic — no fever, cough, fatigue or breathing issues — could sustain temporary lung damage from the novel coronavirus.
A CT Scan of the chest of a 66-year-old male reveals patchy rounded hazy spots throughout the lungs. He had tested positive for the novel coronavirus and experienced shortness of breath.

Even if someone is infected by the novel coronavirus and remains asymptomatic — free of coughing, fever, fatigue and other common signs of infection, that doesn't mean the coronavirus isn't taking a toll. The virus can still be causing mild — although, likely reversible — harm to their lungs.

A new paper in Nature Medicine, published June 18, documents the clinical patterns of asymptomatic infections. It finds that many of the people studied developed signs of minor lung inflammation — akin to walking pneumonia — while exhibiting no other symptoms of coronavirus.

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