Incident Management Support Team situation reports

Situation update for the period covered: 

Egypt has officially closed its circulating vaccine-derived poliovirus type 2 (cVDPV2) outbreak after no new poliovirus detections since December 2023, marking a major milestone for the region.

In Gaza, oPt, surveillance has been significantly strengthened despite severe challenges being faced and access constraints, with no new cVDPV2 detected since 5 March 2025.

Somalia continues to demonstrate strong commitment, maintaining high-quality surveillance and implementing immunization campaigns – including an integrated one - that have reached millions of children.

In Sudan, while cVDPV2 circulation remains limited to parts of states in Darfur, preparations are underway to launch vaccination campaigns targeting over two million children in the Darfur States, despite severe challenges, including access restrictions.

Yemen's northern governorates remain a challenge with several confirmed cVDPV2 cases and without an outbreak response; however, a campaign has been conducted in the southern governorates to protect 1.36 million children from further spillover of poliovirus from the north.

Djibouti is facing twin outbreaks of circulating vaccine-derived poliovirus type 1 (cVDPV1) and cVDPV2. The country achieved high coverage through two nationwide novel oral polio vaccine type 2 (nOPV2) campaigns in April and May. There are plans to provide bivalent oral polio vaccine (bOPV) to children to further mitigate risks of spread of cVDPV1.

Circulating vaccine-derived poliovirus type 1 (cVDPV1) isolates, 2025 (as of 7 August 2025)