Breakdown of alerts sent from Test and Protect app: FOI release

Information requested

1. How many individual app users have been alerted that they have been in close contact with another app user who tested positive for coronavirus in the period 27 December to 6 January?

2. What proportion of those alerted subsequently tested positive for Coronavirus?

3. How many individual app users have been alerted that they have been in close contact with another app user who tested positive for coronavirus in the period 27 December to 6 January? per day?

4. What proportion of those alerted subsequently tested positive for Coronavirus?

Response

While our aim is to provide information whenever possible, in this instance the Scottish Government does not have some of the information you have requested, specifically we are unable to answer questions two and four.

1. It is not possible to determine how many individuals have been alerted from data held by the Scottish Government as each individual may have the Protect Scotland app installed on multiple devices, and therefore receive more than one notification. It is possible to determine the number of contact notifications issued to unique devices during this period, which was 15,068.

2. The Protect Scotland app is completely anonymous and has been created with privacy by design. As a result it is not possible to determine the proportion of the 15,068 contact notifications that could then be attributed to a subsequent positive test for COVID-19.

3. It is not possible to determine how many individuals have been alerted from data held by the Scottish Government as each individual may have the Protect Scotland app installed on multiple devices, and therefore receive more than one notification. It is possible to determine the number of contact notifications issued on a daily basis to unique devices. This information is set out in the table below:

	Date	Contact Notifications (Daily)
	27 December 2021	1,178
	28 December 2021	1,675
	29 December 2021	1,833
	30 December 2021	1,189
	31 December 2021	1,377
	01 January 2022	1,154
	02 January 2022	1,351
	03 January 2022	1,571
	04 January 2022	1,346
	05 January 2022	1,197
	06 January 2022	1,197
	Total	15,068

4. As set out in response to question two, the Protect Scotland app is completely anonymous and has been created with privacy by design. As a result it is not possible to determine the proportion of the contact notifications in the table above that could then be attributed to a subsequent positive test for COVID-19

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