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October 27th Polio Update

Gaza Update: The second round of the Gaza outbreak response was implemented in key areas, but due to the escalating violence, intense bombardment, mass displacement orders, and lack of assured humanitarian pauses across most of northern Gaza, the Polio Technical Committee for Gaza has been compelled to postpone the third phase of the polio vaccination campaign there.

New wild poliovirus isolates reported this week:
AFP cases: 8

Environment: 11
Others: 0
New cVDPV isolates reported this week:
AFP cases: 9

Environment: 4
Others: 0

Summary of new poliovirus cases and positive environmental samples:
Afghanistan: one WPV1 case and ten WPV1 positive environmental samples
Chad: three (cVDPV2) cases and two cVDPV2 positive environmental samples
Djibouti: one cVDPV2 positive environmental sample
Niger: one cVDPV2 case and one cVDPV2 positive environmental samples
Nigeria: five cVDPV2 cases
Pakistan: seven WPV1 cases and one WPV1 positive environmental samples

Afghanistan: One WPV1 case and ten WPV1 positive environmental samples were reported this past week. There were six WPV1 cases reported last year.
Pakistan: Seven WPV 1 cases and one WPV1 positive environmental samplewere reported this past week. There were six WPV1 cases reported last year.

Officially reported WPV1 and cVDPV cases as of (September 27, 2024):
Wild poliovirus (WPV)
Total global WPV1 cases in 2024: 62

Total global WPV1 cases in 2023: 12
Total global WPV1 cases in 2022: 30
Total global WPV1 cases in 2021: 6
Total global WPV1 cases in 2020: 140
Circulating vaccine-derived poliovirus (cVDPV) cases
Total global cVDPV cases in 2024: 190

Total global cVDPV cases in 2023: 528
Total global cVDPV cases in 2022: 878

Most recently reported WPV1 case: October 1, 2024, in Pakistan.