When you use Exposure Notifications on your iPhone, your phone can alert you if you've been exposed to COVID-19. If you live in a region that supports Exposure Notifications, your iPhone will use low-energy Bluetooth to exchange randomly-generated numbers with other participants when you're in close proximity for 15 minutes or more. These random numbers are anonymous and saved on your phone for 14 days. If someone you were near tests positive for COVID-19 and reports it in the system, you will receive an alert with instructions for testing. Some regions that participate in the Exposure Notifications program offer their own apps that work alongside Apple's Exposure Notifications service. If an app is required by your region, you will be prompted to download it while setting up Exposure Notifications on your iPhone.[1] This wikiHow teaches you how to turn on Exposure Notifications on your iPhone, as well as how to report your own positive COVID-19 diagnosis.

Enabling Exposure Notifications

Open your iPhone's Settings Image titled Iphonesettingsappicon.png. It's the gray gear icon on your home screen or in your Utilities folder.
Exposure Notifications are not available in all regions.
Many regions who participate in the Exposure Notifications program do not require iPhone users to install a separate app, including California, Colorado, Maryland, New York, Virginia, and Washington. If an app is required by your region, you will be asked to install it during the setup process.
Some regions do offer iPhone apps even if they don't require them for use with Exposure Notifications. These apps may provide helpful information about COVID-19 in the region, including infection stats and vaccine info. To find out if your region has an official COVID-19 app, search for your region's name in the App Store.
As of February 2021, 27 U.S. States and 37 countries (including Canada, much of Europe, and Russia) are participating in the iPhone Exposure Notifications program.[2]

2.Scroll down and tap Exposure Notifications. It's in the third group of settings. Look for the white icon containing a red dot surrounded by smaller red dots.
If Exposure Notifications are already on, you will see an "Active" message at the top of the screen, followed by the region for which you enabled notifications.
If you want to add another region, tap the current region, select Add Another Region, and then skip to Step 6.
If you don't see this option, scroll up and tap General, then select Software Update. If a new version of iOS is available, update your iPhone now.

3.Tap Turn On Exposure Notifications. It's at the top of the screen.

4.Tap How Exposure Notifications Work. This section explains how your iPhone will use Bluetooth to look for other nearby people who've also enabled Exposure Notifications on their own phones. If someone you encountered who has Exposure Notifications turned on tests positive and reports it, you will be notified by your public health authority.
Tap Learn more at the bottom to read more about how privacy work with Exposure Notifications.
Tap Done at the top-right corner when finished to close the window.

Tap the blue Continue button. It's at the bottom of the screen.

Select your region. Depending on the region you select, you may also need to select a sub-region. For example, if you select United States, you'll need to select your state, as each participating state has its own COVID notification programs.

7.Download your region's app if prompted). If your region requires that you install a specific app from the app store, such as when you're in Alabama or Delaware, you will be prompted to download that app from the App Store.
Tap Open App Store when prompted, scroll to your region's name, and then tap Get to install the app. Then, tap the app's icon on your home screen to open the app and follow the on-screen instructions.

Review the terms and tap Agree. A confirmation message will appear.
If your region doesn't participate in the Exposure Notifications program, you will see a message that says "Exposure Notifications Are Not Currently Available." You can select an option that will inform you if your region begins participating in the program—just tap Done to close the window, and then toggle the "Availability Alerts" switch to the On position.

9.Tap Turn On to confirm. You will see a message that says "Exposure Notifications are Enabled."

Tap Next to continue. The remaining steps vary depending on your region. For example, some regions request that you contribute (anonymous) data that can help their health department understand how people use the app.

You'll need to keep Bluetooth enabled for Exposure Notifications to work. If you turn off Bluetooth, your iPhone will not communicate with others you are near.
Android users can use their regions' official Exposure Notifications app to participate in the program. Your iPhone will communicate with Android users who are using their own apps the same way it does with other iPhones.
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