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

GPEI leadership in endemic countries:  polio eradication and strengthening health systems go hand in hand

Last week, the Polio Oversight Board (POB) of the Global Polio Eradication Initiative (GPEI) met with programme and public health leaders in both Afghanistan and Pakistan.  Leaders from Rotary International, WHO, UNICEF, Gavi and KSRelief met with frontline health workers, religious leaders, government representatives, donors and partners, to underscore the urgent need to eradicate polio while protecting essential health services.  Throughout the visits, the message that emerged was very clear:  end polio and strengthening health systems go hand in hand.  With sustained commitment and support, efforts can protect children, strengthen communities and advance health security across the region.

New outbreak response standards to stop polio faster

As the world moves closer to polio eradication, stopping outbreaks quickly and decisively has never been more important. To reflect evolving epidemiology, new scientific evidence and years of operational experience, the Global Polio Eradication Initiative has updated its outbreak response Standard Operating Procedures (SOPs).  The updated SOPs sharpen how countries detect, assess and respond to poliovirus outbreaks — with a particular focus on the type 2 outbreaks that now account for most global transmission. They introduce clearer outbreak definitions, stronger risk assessment, and more tailored response strategies, helping programmes close immunity gaps faster and prevent outbreaks from becoming prolonged.  For a high-level overview of polio outbreaks and how to stop them, partners at the UN Foundation have developed a short explainer fact sheet here.

Summary of new polioviruses this week: 

  • Afghanistan :  four WPV1 cases and 12 WPV1-positive environmental samples
  • Pakistan:  one WPV1-positive environmental sample
  • Chad:  one cVDPV2 case
  • DR Congo:  two cVDPV2 cases
  • Ethiopia:  two cVDPV1 cases
  • Madagascar:  two cVDPV1-positive environmental samples
  • Nigeria:  one cVDPV3 case
  • South Sudan:  one cVDPV1 case
Country updates as of 15 July 2026

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

  • Four WPV1 cases were reported this week, from Hirat, Hilmand and Nangarhar, with onsets of paralysis in May and June 2026.  The total number of cases in 2026 is eleven (most recent case:  12 June 2026).  The total number of cases in 2025 is 21. 
  • Twelve WPV1-positive environmental samples were reported this week from Nangarhar, Kandahar, Hilmand and Kabul, collected in May 2026 (most recent positive environmental sample: 24 May 2026).

  • No WPV1 cases were reported this week (most recent case:  7 April 2026).  The total number of cases in 2025 is 31. The total number of cases in 2026 is three.
  • One WPV1-positive environmental sample was reported this week, from Peshawar, Khyber Pakhtunkhwa, collected on 11 June 2026 (most recent positive environmental sample).

  • One cVDPV2 case was reported this week, from Kanem, with onset of paralysis on 19 May 2026 (most recent case).  The number of cVDPV2 cases in 2025 is 33.  The number of cVDPV2 cases in 2026 is seven.
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample:  04 February 2026).
  • No cVDPV3 case is reported this week.  The number of cVDPV3 cases in 2025 is four.  The number of cVDPV3 cases in 2026 is one (most recent case:  06 May 2026).

  • No cVDPV1 case was reported this week.  The number of cVDPV1 cases from 2025 is one (onset of paralysis: 25 June 2025).
  • Two cVDPV2 cases were reported this week, from Haut Lomami and Kasai Central, with onsets of paralysis on 24 May 2026 and 26 May 2026 (most recent case).  The number of cVDPV2 cases in 2025 is seven.  The number of cVDPV2 cases in 2026 is eleven.

  • Two cVDPV1 cases were reported this week, from Oromiia, with onsets of paralysis on 20 May 2026 and 25 May 2026 (most recent case).  The number of cVDPV1 cases in 2026 is nine.
  • No cVDPV2 case was reported this week. The total number of cases reported in 2025 is 40 (most recent case: 7 October 2025).

  • No cVDPV1 case was reported this week.  There are two cases reported in 2026 (most recent case:  13 May 2026). 
  • Two cVDPV1-positive environmental samples were reported this week, collected from Sud-Ouest on 4 May 2026 and 1 June 2026 (most recent positive environmental sample).

  • No cVDPV2 case was reported this week.  The total number of cVDPV2 cases reported in 2025 is 66.  The total number of cVDPV2 cases reported in 2026 is 28 (most recent case:  29 May 2026). 
  • No cVDPV2-positive environmental sample was reported this week (most recent positive environmental sample:  30 May 2026).
  • One cVDPV3 case was reported this week, from Zamfara, with onset of paralysis on 1 June 2026 (most recent case).  The total number of cVDPV3 cases in 2025 is eight.  The total number of cVDPV3 cases in 2026 is seven.

  • One cVDPV1 case was reported this week, from Upper Nile, with onset of paralysis on 7 May 2026.  There are seven cVDPV1 cases reported in 2026 (most recent case:  15 May 2026).
  • No cVDPV2-positive environmental samples were reported this week (most recent positive environmental sample:  12 May 2026).