Apple-Google system. If they do, iPhone users in those states will automatically be able to opt into the system without having to download an app.
They’ll be prompted with a notification asking if they consent to running the system on their phones.For people with Android phones, Google will automatically generate an Android app for public health agencies that phone users can then download.The companies said they expect Maryland, Nevada, Virginia and Washington, D.C., to be the first in the U.S.