Ideas, Inventions And Innovations Three Reasons Why COVID-19 Can Cause Silent Hypoxia A doctor examines a patient’s lungs using a computed tomography scan in Moscow, Russia. BU researcher Bela Suki says that many patients, despite not showing signs of lung abnormalities during a scan, suffer from dangerously low oxygen levels, a condition known as silent hypoxia. Credit: Sputnik via AP via Boston University More than six months since COVID-19 began spreading in the United States, scientists are still solving the many puzzling aspects of how the novel coronavirus attacks the lungs and o...