1
Person A downloads the contact tracing app and enables Bluetooth
2
Her phone logs distance data with any phones that are nearby
3
Data is anonymous for A and everybody she comes in contact with
4
If person A falls ill she notifies the app that she has symptoms
5
The data gathered by her phone is uploaded to a central server
6
People who have been in close contact with her are sent an alert and further advice
1
2
3
Person A downloads the contact tracing app and enables Bluetooth
Her phone logs distance data with any phones that are nearby
Data is anonymous for A and everybody she comes in contact with
4
5
6
If person A falls ill she notifies the app that she has symptoms
The data gathered by her phone is uploaded to a central server
People who have been in close contact with her are sent an alert and further advice