Provides files to download data as it existed for this dataset on previous dates.

Statistics are most often revised for 1 of 2 reasons:

  1. For certain statistics initial estimates are released with the expectation that these may be revised and updated as further data becomes available.
  2. Revisions may also be made when methods or systems are changed.

These types of planned revisions should not be confused with errors in released statistics, which are genuine mistakes. Such mistakes occur rarely and, when they do happen, corrections are made in a timely manner, announced and clearly explained to users in line with the Code of Practice for Official Statistics (Principle 2, Practice 7).

Latest version

xlsx (2.2 MB)

Previous versions

Superseded files Reason for update Date superseded
xlsx (2.3 MB) Scheduled update/revision 23 December 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 8 December 2021 09:30
xlsx (2.4 MB) Scheduled update/revision 23 November 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 10 November 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 27 October 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 21 September 2021 09:00
xlsx (2.3 MB) Scheduled update/revision 16 September 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 1 September 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 19 August 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 4 August 2021 09:30
xlsx (2.4 MB) Scheduled update/revision 21 July 2021 09:30
xlsx (2.4 MB)
Correction See correction
Following this release, an issue was identified with the dates used for antibody estimates by single year of age for England. This has now been corrected.
19 July 2021 11:55
xlsx (2.5 MB) Scheduled update/revision 7 July 2021 09:30
xlsx (2.7 MB) Scheduled update/revision 22 June 2021 09:30
xlsx (2.6 MB) Scheduled update/revision 9 June 2021 09:30
xlsx (3.3 MB) Scheduled update/revision 26 May 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 13 May 2021 09:30
xlsx (2.3 MB) Scheduled update/revision 28 April 2021 09:30
xlsx (2.2 MB) Scheduled update/revision 14 April 2021 09:30
xlsx (610.5 kB) Scheduled update/revision 30 March 2021 09:30
xlsx (400.4 kB) Scheduled update/revision 16 March 2021 09:30
xlsx (145.6 kB) Scheduled update/revision 2 March 2021 09:30
xlsx (145.2 kB) Scheduled update/revision 16 February 2021 07:00