Confirmed cases of mpox clade Ib in United Kingdom
This release has been published in response to confirmed cases of clade Ib mpox in the UK. Whilst numbers remain low updates will be released on an ad-hoc basis.
Current confirmed cases
As of 29 November 2024, the UK Health Security Agency (UKHSA) has confirmed 5 cases of clade Ib mpox in the UK.
The first case was reported on 30 October 2024 with 3 further household contact cases confirmed. The latest confirmed case is a new and unrelated case.
UKHSA news updates on confirmed cases are issued separately to the information on this page.
Methods and definitions
A confirmed mpox case is defined as a person with a laboratory-confirmed infection following a polymerase chain reaction (PCR) test.
Mpox surveillance data in England is based on mpox virus test results from the Rare and Imported Pathogens Laboratory (RIPL), which is the UKHSA mpox reference laboratory, and other UK laboratories with mpox testing.
Any counts of confirmed cases in Wales, Northern Ireland, and Scotland will be submitted to UKHSA by Public Health Wales, Public Health Agency Northern Ireland, and Public Health Scotland respectively.
Further information and advice
See GOV.UK for further information on the background of these clades.
UKHSA has published a range of guidance and advice on the epidemiology, symptoms, diagnosis, and management of mpox virus infections as well as technical reports and risk assessments.
Related routine statistics
The UKHSA publishes routine monthly updates on clade IIb mpox cases in the UK.
Updates to this page
Published 8 November 2024Last updated 29 November 2024 + show all updates
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Updated with latest cases.
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First published.