Guidance

Clade I mpox: affected countries

This page provides an overview of countries reporting clade I mpox cases (historic or current), indicating where there may be a risk of clade I mpox exposure.

The clade I mpox outbreak is focused in a number of countries within the African region, as per Figure 1 below. Imported clade I mpox cases outside the African region have been reported in several countries.

Figure 1. African region countries reporting laboratory confirmed clade I mpox (historic or current)

The situation may change rapidly in different countries. It is possible that mpox cases may be present in countries who have not reported clade I mpox to date. Mpox of an unknown clade has been reported in Gabon but is presumed to be clade I (due to case travel history).

Given the continuing spread of clade I mpox, please check this webpage regularly for any updates to the countries included.

Table 1. List of countries with evidence of ongoing clade I mpox transmission or exportation during the 2024 to 2025 outbreak

Country Evidence of transmission Clade
Burundi Community transmission Ib
Central African Republic Community transmission Ia
Democratic Republic of the Congo Community transmission Ia and Ib
Gabon Community transmission I
Kenya Community transmission Ib
Republic of the Congo Community transmission Ia
Rwanda Community transmission Ib
Tanzania Unclear (evidence of exported cases) Ib
Uganda Community transmission Ib
United Arab Emirates Unclear (evidence of exported cases) Ib
Zambia Community transmission Ib

Table 2. List of countries in the African region with historical transmission of clade I mpox, with no cases reported during the 2024 to 2025 outbreak

Country Evidence of transmission Clade
Cameroon Community transmission Ia
South Sudan Community transmission Ia
Sudan Community transmission Ia

Imported clade I mpox cases with limited or no onward transmission have been reported in several countries:

  • Belgium (with reported travel history to a clade I affected African country), with limited transmission among household contacts
  • Canada (with reported travel history to a clade I affected African country)
  • China (with reported travel history to the Democratic Republic of the Congo), with limited transmission among close contacts
  • France (with reported travel history to a clade I affected African country), with limited transmission among close contacts
  • Germany has reported imported clade I mpox cases (with reported travel history to Rwanda or Tanzania or clade I affected African countries), with limited transmission among household contacts
  • India (with reported travel history to the United Arab Emirates)
  • Republic of Ireland (with reported travel history to the Democratic Republic of the Congo)
  • Oman (with reported travel history to the United Arab Emirates)
  • Pakistan (with reported travel history to the United Arab Emirates)
  • Sweden (with reported travel history to a clade I affected African country)
  • Thailand (with reported travel history to a clade I affected African country)
  • United States (with reported travel history to a clade I affected African country)
  • the United Kingdom has reported imported clade I mpox cases (with reported travel history to clade I affected countries in Africa), with limited transmission among household contacts
  • Zimbabwe (with reported travel history to Tanzania)

These countries are not considered as clade I mpox affected for purposes of testing or guidance, unless an individual reports being a contact of a confirmed case in one of these countries. Reported travel history is not necessarily indicative of acquisition in-country and investigations may be ongoing.

Updates to this page

Published 14 October 2024
Last updated 15 February 2025 + show all updates
  1. Updated Zambia status.

  2. Added Republic of Ireland and a few other minor changes.

  3. Updated the list of affected countries.

  4. Tanzania added to Table 1. Updates added for travel-associated cases in Germany (URL also updated) and the UK.

  5. Belgium has been updated to reflect one new case reported in a household contact of their first imported case.

  6. Updated to include information for Belgium, China and France.

  7. Updated information for Gabon and added information for United Arab Emirates.

  8. Updated links and added Oman & Pakistan to list.

  9. Updated guidance.

  10. Updated information for imported clade I mpox cases in countries outside of the African region.

  11. First published.

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