![Preliminary Research Suggests COVID-19 Warning App Has Slowed Transmission of the Virus - California Health Care Foundation Preliminary Research Suggests COVID-19 Warning App Has Slowed Transmission of the Virus - California Health Care Foundation](https://www.chcf.org/wp-content/uploads/2021/02/Ken-Wottge-CANotify_topper.jpg)
Preliminary Research Suggests COVID-19 Warning App Has Slowed Transmission of the Virus - California Health Care Foundation
![Apple launches COVID-19 'Exposure Notification Express' with iOS 13.7 — Android to follow later this month | TechCrunch Apple launches COVID-19 'Exposure Notification Express' with iOS 13.7 — Android to follow later this month | TechCrunch](https://techcrunch.com/wp-content/uploads/2020/09/COVID-19-Exposure-Notification-Update-9.1.20-Hero-Screens.001.jpeg)
Apple launches COVID-19 'Exposure Notification Express' with iOS 13.7 — Android to follow later this month | TechCrunch
![Apple And Google Launch 'Exposure Notifications Express' To Improve COVID-19 Contact Tracing | The Software Report Apple And Google Launch 'Exposure Notifications Express' To Improve COVID-19 Contact Tracing | The Software Report](https://www.thesoftwarereport.com/wp-content/uploads/2020/09/Apple-and-Google.jpg)
Apple And Google Launch 'Exposure Notifications Express' To Improve COVID-19 Contact Tracing | The Software Report
![Apple Expands Exposure Notification API With 'Express' Option That Doesn't Require an App - MacRumors Apple Expands Exposure Notification API With 'Express' Option That Doesn't Require an App - MacRumors](https://images.macrumors.com/t/aZzU2-aJHssI-gygFvXCHySTgwY=/1200x1200/smart/article-new/2020/09/iOS-13.7-Covid-Notifications-Feature.jpg)
Apple Expands Exposure Notification API With 'Express' Option That Doesn't Require an App - MacRumors
![Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors](https://images.macrumors.com/t/FS__t57uPFNufkpp5DapWLTyRqg=/400x0/article-new/2020/08/exposurenotificationsios14.jpg?lossy)
Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors
![Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors Apple's Exposure Notification System: Everything You Need to Know as the U.S. Shuts Down Support - MacRumors](https://images.macrumors.com/t/39G3vfdwOodF5r0ugo0jmqiUt5I=/1600x1200/smart/article-new/2020/04/Exposure-Notifications-W-People-and-Text.jpg)