Polio this week – GPEI
Polio this week

Headlines 

  • Importance of vaccine research for post-eradication era
    As the world prepares for a polio-free future, scientists are working on next-gen vaccines using virus-like particles (VLPs), an initiative launched and coordinated by WHO. In Vaccine Insights, Professor Nicola Stonehouse, from the University of Leeds, reflects on her collaboration with the GPEI and how this breakthrough could shape post-certification strategy. [Read the interview]
  • More Than Polio: How Somalia’s Vaccine Drive is Securing a Healthier Future
    In a powerful show of political will, Somalia vaccinated nearly 1.4 million children last week—protecting them not just against polio, but also measles and pneumonia. This integrated effort highlights the broader impact of polio eradication on strengthening health systems. [Learn more]
  • New SAGE Report Calls for Bold Action on Polio and Routine Immunization
    The latest report from WHO’s Strategic Advisory Group of Experts on immunization (SAGE) urges stronger global action on polio eradication—highlighting concerns over rising wild virus cases, variant poliovirus spread into new regions, and the urgent need to reach zero-dose children. It backs bOPV cessation plans, endorses a new risk-assessment framework for IPV-only schedules, and updates key vaccine recommendations. [Read the full report]

Summary of new polioviruses this week, cases and positive environmental isolates:

  • Angola:  one cVDPV2 case
  • Benin:  one cVDPV2 case
  • Niger:  one cVDPV2 case
Country updates as of 11 June 2025

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

  • One cVDPV2 case was reported this week, from Benguela, with onset of paralysis on 16 April. The total number of cases reported in 2024 is nine. The total number of cases reported in 2025 is three.
  • No cVDPV2-positive environmental samples were reported this week.

  • One cVDPV2 case was reported this week, with onset of paralysis on 10 May, from Plateau. It is the first case in 2025.  There has been one case reported in 2024.
  • No cVDPV2-positive environmental samples were reported this week.

  • One cVDPV2 case was reported this week, from Niamey, with onset of paralysis on 18 April. There have been three cases reported in 2025.
  • No cVDPV2-positive environmental samples were reported this week.