Phones that have been near each other for long enough can approximate potential viral transmission. This variant is optimized for energy-efficient communication between small devices, which makes it a popular protocol for smartphones and wearables such as smartwatches.īluetooth allows phones that are near each other to communicate. The protocol used for this is Bluetooth Low Energy, or Bluetooth LE for short. Bluetooth beaconsīecause Bluetooth is supported on billions of devices, it seems like an obvious choice of technology for these systems. So how does the Apple-Google exposure notification system work? As researchers who study security and privacy of wireless communication, we have examined the system’s specifications and have assessed its effectiveness and privacy implications. But digital exposure notification systems have a big advantage: They can be used by millions of people and rapidly warn those who have been exposed to quarantine themselves. Exposure notification schemes like the Apple-Google system aren’t true contact tracing systems because they don’t allow public health authorities to identify people who have been exposed to infected individuals. Recently, a study found that contact tracing can be effective in containing diseases such as COVID-19 if large parts of the population participate. Several other exposure notification projects, including PACT, BlueTrace and the Covid Watch project, take a similar privacy-protecting approach to Apple’s and Google’s initiative. Many of them also report the identities of the exposed people to public health authorities, which has raised privacy concerns. All of the apps and services are voluntary however, the island of Maui in Hawaii now requires visitors to use one.ĭozens of apps are being used around the world that alert people if they’ve been exposed to a person who has tested positive for COVID-19. ![]() ![]() The system uses the ubiquitous Bluetooth short-range wireless communication technology.Īs of January, 20 states and the District of Columbia are using the system for exposure notification apps and app-less services. The services use the coronavirus exposure notification system built jointly byĪpple and Google for their smartphone operating systems, iOS and Android, which the companies updated to work without apps. This means iPhone users in those states won’t need to install exposure notification apps and can instead turn on notifications in the phone’s settings. Questions and Answers.Virginia has enabled app-less COVID-19 exposure notification services for iPhone users, joining California, Colorado, Connecticut, Hawaii, Maryland, Minnesota, Nevada, Washington, Wisconsin and the District of Columbia. *The European Federation Gateway Service enables different national apps to exchange information and warn you about exposures when you travel across the EU. While the European Commission seeks to keep this list up to date, we take no responsibility of any kind, express or implied, about the completeness and accuracy of the information provided or individual decisions based thereon. The Commission is not responsible for the development or the deployment of the listed contact tracing apps. ![]() Romania is exploring the development of a contact tracing app.Ī contact tracing app is being developed.ĭisclaimer: This list of contact tracing apps is based on the latest publicly available information. The deployment of a contact tracing app is not foreseen. Interoperable - can this app already talk to another app?* Interoperable - is this app potentially interoperable?
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