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Polio this week

Technical Advisory Group sets priorities and benchmarks to end polio in Afghanistan and Pakistan

The Technical Advisory Group (TAG) on Polio Eradication, an independent body of global experts, recently convened to review progress, challenges and operational plans across the world’s last two wild polio-endemic countries, and identified key priorities and milestones, as both countries continue to work to interrupt their remaining chains of wild poliovirus transmission.  More.

Summary of new polioviruses this week: 

  • Central African Republic:  one cVDPV2 case
  • Ethiopia:  one cVDPV1 case
  • Lao PDR:  two cVDPV1 cases
  • Mali:  one cVDPV2 case
  • Nigeria:  one cVDPV2-positive environmental sample
Country updates as of 24 June 2026

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

  • One cVDPV2 case was reported this week, from RS1, with onset of paralysis on 19 May 2026 (most recent case).  There are three cases reported in 2026.  There are two cases reported in 2025.

  • One cVDPV1 case was reported this week, from Gambella, with onset of paralysis on 16 May 2026 (most recent case).  The number of cVDPV1 cases in 2026 is five.
  • No cVDPV2 case was reported this week. The total number of cases reported in 2025 is 40 (most recent case: 7 October 2025).

  • Two cVDPV1 cases were reported this week, from Xiengkhuang and Borikhamxay, with onsets of paralysis on 21 April 2026 and 14 May 2026.
  • The two cases are genetically linked to each other but are unrelated to the cVDPV1 detected in the country in 2025.

  • One cVDPV2 case is reported this week, from Tombouctou, with onset of paralysis on 25 April 2026.  It is the first case in 2026.  There was one case reported from the country in 2025.

  • No cVDPV2 cases were reported this week.  The total number of cVDPV2 cases reported in 2025 is 66.  The total number of cVDPV2 cases reported in 2026 is 27 (most recent case:  8 May 2026). 
  • One cVDPV2-positive environmental sample was reported this week, from Zamfara, collected on 30 May 2026 (most recent positive environmental sample.
  • No cVDPV3 cases were reported this week.  The total number of cVDPV3 cases in 2025 is eight.  The total number of cVDPV3 cases in 2026 is six (most recent case:  25 April 2026).