Nigeria + 32 more

Polio this week as of 28 December 2021

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Summary of new WPV and cVDPV this week (AFP cases and ES positives):

- Pakistan: Two WPV1 positive environmental samples
- DR Congo: Four cVDPV2 cases and one cVDPV2 positive environmental sample
- Ethiopia: One cVDPV2 case
- Madagascar: One cVDPV1 case and two cVDPV1 positive environmental samples
- Nigeria: 64 cVDPV2 cases and eight cVDPV2 positive environmental samples
- Senegal: One cVDPV2 case
- Yemen: Two cVDPV2 cases