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Polio this week

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Alwaleed Philanthropies (Global) continues long-standing commitment to polio

Three-year US$15 million funding to support vaccination and surveillance activities in endemic and outbreak countries.  More.

Global health leaders to meet at WHO’s Executive Board next week

Global health leaders and ministries of health are convening at next week’s WHO Executive Board in Geneva, Switzerland.  Among other health topics, delegates will review the global polio eradication situation.  A report on polio has been published, to inform Member State discussions. It provides an overview of progress in implementing and financing the Polio Eradication Strategy, including in the current geopolitical context. It also outlines ongoing planning to secure a lasting polio-free world, such as polio transition efforts and the development of Sustaining a Polio-free World: A Strategy for Long-term Success.  The link to the report is available here.

Summary of new polioviruses this week: 

  • Afghanistan:  one WPV1 case and five WPV1-positive environmental samples
  • Pakistan:  nine WPV1-positive environmental samples
  • Algeria:  one cVDPV2-positive environmental sample
  • Central African Republic:  one cVDVP2 case
  • Chad:  one cVDPV2 case and one cVDPV2-positive environmental sample
  • Malawi:  two cVDPV2-positive environmental samples
  • Mali:  one cVDPV2 case
  • Namibia:  one cVDPV2-positive environmental sample
  • United Kingdom:  one cVDPV2-positive environmental sample
Country updates as of 28 January 2026

More information on the countries that have reported cases and/or environmental samples this week.

  • One WPV1 case was reported this week, from Faryab, with onset of paralysis on 20 October 2025 (most recent case).  The number of cases in 2025 is ten. 
  • Five WPV1-positive environmental samples were reported this week, all collected on 26 October 2025 (most recent positive environmental samples), from Hilmand and Kandahar.

  • No WPV1 case was reported this week.  The total number of cases in 2025 is 31 (most recent case:  onset of paralysis on 14 December 2025). 
  • Nine WPV1-positive environmental samples were reported this week, collected in early January 2026, from Sindh (most recent positive environmental sample:  7 January 2027).

  • No cVDPV1 case was reported this week.  In 2025, one cVDPV1 case was reported (onset of paralysis on 25 January 2025). 
  • No cVDPV1-positive environmental sample was reported this week (most recent positive environmental sample:  17 March 2025).
  • One cVDPV2-positive environmental sample was reported this week, from Tamanghasset, collected on 15 December 2025 (most recent positive environmental sample).
  • No cVDPV2-positive environmental sample was reported this week (most recent positive environmental sample:  18 November 2025).

  • One cVDPV2 case was reported this week, with onset of paralysis on 6 December 2025, from RS3 province (most recent case).  There are two cases reported in 2025.
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample:  25 March 2025).

  • One cVDPV2 case was reported this week, from Tandjile, with onset of paralysis on 6 November 2025 (most recent case).  The number of cVDPV2 cases in 2025 is 27.
  • One cVDPV2-positive environmental sample was reported this week, from N’Djamena, collected on 9 December 2025 (most recent positive environmental sample).
  • No cVDPV3 case was reported this week. The number of cVDPV3 cases for 2025 is four (most recent case:  18 October 2025).

  • Two cVDPV2-positive environmental sample were reported this week, both collected on 8 December 2025, from Southern province (most recent positive environmental sample).
  • The isolates are linked to each other, with final emergence group classification pending additional analysis.

  • One cVDPV2 case is reported this week, from Menaka, with onset of paralysis on 3 October 2025.  It is the first isolate reported from the country in 2025, and is linked to cVDPV2 sequence from Tamanghasset Algeria, emergence group NIE-ZAS-1.

  • One cVDPV2-positive environmental sample was reported this week, from Kavango, collected on 9 December 2025 (most recent positive environmental sample).