UK COVID-19 alert level methodology: an overview

Explains the criteria used to move between the alert levels set out in the UK government's COVID-19 recovery plan.



The UK COVID-19 alert level communicates the current risk at a UK-wide level and was defined in the UK government’s COVID-19 recovery strategy ‘Our Plan to Rebuild’ in May 2020.

The Joint Biosecurity Centre (JBC) provides advice to the UK Chief Medical Officers and NHS England’s National Medical Director who in turn advise ministers on the UK COVID-19 alert level.

Published 5 January 2021
Last updated 24 November 2021 + show all updates
  1. Updated UK COVID-19 alert level methodology: an overview.

  2. Updated with latest alert level methodology.

  3. First published.