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Cover of Vaccination Evaluated Rapidly (COVER)

The Cover of Vaccination Evaluated Rapidly (COVER) surveillance scheme evaluates the Child Immunisation Programme in England coverage for vaccines delivered before the age of 5. It replaces the Child Immunisation (GP) quarterly collection.

About this collection

This quarterly collection reports on the immunisation coverage for three cohort age groups; 12 months, 24 months and 5 years for both the local authority and GP level data. 

Please note that the GP level data is aggregate information collated and used in the normal course of business to inform operational delivery or the management of organisational performance. The information may be incomplete in places, is not quality assured to the same extent as official statistics and may not necessarily be fully representative. Data for the local authority level data is mandated and published as official statistics quarterly.

Data is collected for both local authority and GP level data quarterly from the Child Health Information System providers and submitted via the NHS Digital Strategic Data Collection Service (SDCS).

Launch and submission dates

Cover is a quarterly data collection, collecting each quarter of data in the following months:

Quarter Collection window
Quarter 1 (April to June) 2020 July 2020 to August 2020
Quarter 2 (July to September) 2020 October 2020 to November 2020
Quarter 3 (October to December) 2020 January 2021 to February 2021
Quarter 4 (January to March) 2021 April 2021 to May 2021

The exact dates of each collection window will be communicated to registered submitters of the data collection, when each quarter is coming to an end.


Last edited: 23 June 2020 8:41 am