Information

Breakdown of Test and Protect self-isolation numbers: FOI release

Information request and response under the Freedom of Information (Scotland) Act 2002


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 29 November to 26 December?

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 22 November to 26 December 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 question four. The reasons why we don't have the information are explained below.

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 20,192.

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 20,192 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)

 

Date

Contact Notifications (Daily)

22 November 2021

482

 

10 December 2021

542

23 November 2021

490

 

11 December 2021

581

24 November 2021

490

 

12 December 2021

717

25 November 2021

375

 

13 December 2021

761

26 November 2021

304

 

14 December 2021

905

27 November 2021

310

 

15 December 2021

1,126

28 November 2021

261

 

16 December 2021

842

29 November 2021

479

 

17 December 2021

952

30 November 2021

419

 

18 December 2021

891

01 December 2021

412

 

19 December 2021

929

02 December 2021

371

 

20 December 2021

896

03 December 2021

225

 

21 December 2021

856

04 December 2021

317

 

22 December 2021

1,069

05 December 2021

424

 

23 December 2021

943

06 December 2021

485

 

24 December 2021

933

07 December 2021

427

 

25 December 2021

935

08 December 2021

693

 

26 December 2021

1,325

09 December 2021

737

 

 

 

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.

About FOI
The Scottish Government is committed to publishing all information released in response to Freedom of Information requests. View all FOI responses at http://www.gov.scot/foi-responses.

Contact

Please quote the FOI reference
Central Enquiry Unit
Email: ceu@gov.scot
Phone: 0300 244 4000

The Scottish Government
St Andrews House
Regent Road
Edinburgh
EH1 3DG

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