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Apple launches COVID-19 'Exposure Notification Express' with iOS 13.7 — Android to follow later this month | TechCrunch
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HCDE students work with WA Department of Health to study COVID–19 exposure notification app | Human Centered Design & Engineering
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Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors
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Seattle tech veterans rush to build an app to trace COVID-19 exposure only to run into Apple rejection – GeekWire
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Apple Expands Exposure Notification API With 'Express' Option That Doesn't Require an App - MacRumors
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Preliminary Research Suggests COVID-19 Warning App Has Slowed Transmission of the Virus - California Health Care Foundation
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