► Experts say the United States could quickly expand the nation's limited testing supply and improve speed by authorizing rapid, paper-based antigen tests. The drawback: Rapid tests are less precise when compared to lab tests, which take longer to complete and cost $100 or more.
Wearables such as the Apple Watch, Samsung Galaxy smartwatch, Fitbit and other devices can collect heart and oxygen data, as well as sleep and activity levels. Researchers are studying whether a body's health data might signal an oncoming COVID-19 infection.
A COVID-19 infection may not be imminent for a person whose heart or activity data suggests a potential infection. But the increased likelihood – and the ability to alert the patient to get tested and possibly quarantine – could provide a vital tool in preventing the spread of the disease and tracking it, researchers say.
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