FOI/202100267752 · FOI · unclear
Breakdown of Test and Protect self-isolation numbers: 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 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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