Incident Management Support Team situation reports

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Polio Free Initiative

Incident Management Support Team situation reports

Incident Management Support Team situation reports

Situation update for the period covered: 

In the occupied Palestinian territory, an outbreak of circulating vaccine-derived poliovirus type 2 (cVDPV2) was confirmed on 16 July 2024, after cVDPV2 was detected in six environmental surveillance (ES) samples that had been collected in Deir al Balah and Khan Younis governorates in Gaza on 23 June 2024. During the reporting period, cVDPV2 was detected in a 10-month-old child and 17 ES samples in Gaza.
In Somalia, cVDPV2 was detected in three children and three ES samples as of 31 December 2024. All the cVDPV2 isolates belong to the SOM-BAN-1 emergence. The date of onset for the most recent cVDPV2 case is 5 June 2024 and date of collection of the most recent positive ES sample is 14 May 2024.
In Sudan, following genetic sequencing, VDPV2 was confirmed in three environmental samples collected from the ES site of Kashafa Internally Displaced Camp and Kosti Teaching Hospital in White Nile State. The samples had been collected on 15 August, 25 September and 25 October 2024 respectively.
In Yemen,* cVDPV2 was reported in 35 cases, 33 of which were from the northern governorates. One positive environmental sample has been reported from Aden between June and 31 December 2024 and six positive environmental samples were confirmed in the northern governorates between January and May 2024. The most recent virus isolation for the period covered was from an AFP case reported from Al Hudaydah governorate.
*Note: Sample shipments from the northern governorates of Yemen have stalled since June 2024.

Circulating vaccine-derived poliovirus type 2 (VDPV2) isolates, 2024 to date:

Djibouti: 0 AFP; 3 ES

Egypt: 0 AFP; 2 ES

oPt: 1 AFP; 17 ES

Somalia: 3 AFP; 3 ES

Sudan: 0 AFP; 2 ES

Yemen: 35 AFP; 7 ES