Pakistan + 19 more

Polio this week as of 01 April 2020

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  • Summary of new viruses this week (AFP cases and environmental samples):
    • Afghanistan: one WPV1 case
    • Pakistan: four WPV1 cases, nine WPV1 positive environmental samples and eight cVDPV2 cases
    • Benin: one cVDPV2 case
    • Democratic Republic of the Congo (DR Congo) – two cVDPV2 cases
    • Ethiopia : five cVDPV2 cases
    • Ghana: five cVDPV2 cases and four cVDPV2 positive environmental samples
    • Malaysia: 15 cVDPV1 positive environmental samples and four cVDPV2 positive environmental samples
    • Togo: five cVDPV2 cases

See country sections below for more details.

NA: Onset of paralysis in most recent case is prior to 2017. Figures exclude non-AFP sources. In 2018, cVDPV includes all three serotypes 1, 2 and 3.

For Somalia: 1 cVDPV2 and cVDPV3 isolated from one AFP case.

cVDPV definition: see document “Reporting and classification of vaccine-derived polioviruses” at [pdf].