Each patient creates a new key per day. Only those keys are uploaded. So everyone who is positive in the app needs their keys to be uploaded. At least this woul

Each patient creates a new key per day. Only those keys are uploaded. So everyone who is positive in the app needs their keys to be uploaded. At least this would be a reasonable design choice of the app. Maybe the designers of the app assume you actually follow the quarantine that infected people should do and don't leave your home. In that case, the app can stop uploading of those daily keys.