Guidance

Influenza, COVID-19 and other respiratory viruses: sources of surveillance data

Sources of data for the surveillance systems used to monitor COVID-19, influenza and other seasonal respiratory viruses in England.

From:
UK Health Security Agency
Published
24 October 2022
Last updated
27 May 2025 — See all updates

Applies to England

Documents

Data quality report: national flu and COVID-19 surveillance report

Ref: GOV-17509

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Details

This page summarises the sources of data for the surveillance systems which are used to monitor COVID-19, influenza and other seasonal respiratory viruses in England.

Much of the data obtained through these surveillance systems is presented in the weekly national influenza and COVID-19 surveillance report.

Updates to this page

Published 24 October 2022
Last updated 27 May 2025 show all updates

  1. Added quality information on mortality and for devolved administrations.

  2. Data quality report added.

  3. HARISS system included on the sources of surveillance data. Removed i-sense link.

  4. Updated the sources of surveillance data.

  5. First published.

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