A new wearable that sticks to the throat could detect coronavirus symptoms before you notice them. The stamp-sized device is made of soft silicone material, which is affixed to the base of the throat. It then monitors coughs, breathing, heart rate, and body temperature. All this data is sent to a cloud, where algorithms identify signals of the disease.  The system then sends graphical summaries of the symptoms to a physician, who can use the insights to guide interventions and track the effects of treatments. At the end of each day, the user peels off the patch and puts it on a wireless charger. As the…

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