Polio This Week | GPEI | Most Recent News | Countries
Polio this week

“One of humanity’s most incredible technologies fits in a tiny vial…”  WHO Director-General Dr Tedros Adhanom Ghebreyesus

In the margins of this week’s UN General Assembly in New York, Dr Tedros thanked leaders, partners and donors whose commitment is bringing the world closer to be healthier and safer for future generations of children.  “One of humanity’s most incredible technologies fits in a tiny vial.  The polio vaccine has brought us to the brink of eradicating an ancient disease for good.”

“Money spent on polio doesn’t disappear once the job is done – it keeps strengthening the systems that keep people safe”

A new Devex interview with Luxembourg’s Directorate for Development Cooperation and Humanitarian Affairs explains how investments in polio go beyond one disease – they strengthen surveillance, build cold chain capacity, and empower women health workers delivering services far wider than polio alone.

Summary of new polioviruses this week

  • Afghanistan:  seven WPV1 cases
  • Pakistan:  one WPV1-positive environmental sample
  • Chad:  one cVDPV2 case
  • DR Congo:  three cVDPV2 cases
Country updates as of 23 September 2026

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

  • Seven WPV1 cases were reported this week, from Hilmand, Kandahar and Baghlan, with onsets of paralysis in August 2026. The total number of cases in 2026 is 32 (most recent case: 31 August 2026). The total number of cases in 2025 is 21.
  • No WPV1-positive environmental samples were reported this week (most recent positive environmental sample: 27 July 2026).

  • No WPV1 case was reported this week. The total number of cases in 2026 is four (most recent case:  7 August 2026). The total number of cases in 2025 is 31.
  • One WPV1-positive environmental sample was reported this week, collected from Sindh on 6 August 2026 August (most recent positive environmental sample:  17 August 2026).

  • One cVDPV2 case was reported this week, from Tandjile, with onset of paralysis on 26 July 2026 (most recent case). The number of cVDPV2 cases in 2026 is eight. The number of cVDPV2 cases in 2025 is 33. 
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample: 4 February 2026).
  • No cVDPV3 cases were reported this week. The number of cVDPV3 cases in 2026 is one (most recent case: 6 May 2026). The number of cVDPV3 cases in 2025 is four.

  • Three cVDPV2 cases were reported this week from Haut Lomami, Kinshasa and Tanganyika, with onsets of paralysis in June and August 2026. The number of cVDPV2 cases in 2026 is 55 (most recent case:  11 August 2026). The number of cVDPV2 cases in 2025 is seven.
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample: 14 May 2026).
  • No cVDPV1 cases were reported this week. The number of cVDPV1 cases from 2025 is one (onset of paralysis: 25 June 2025).