The Global Polio Eradication Initiative (GPEI) reported this week on a advance notification of circulating vaccine-derived poliovirus-1 (cVDPV1) in Papua New Guinea. Following identification last month of an Acute Flaccid Paralysis (AFP) case from which VDPV type 1 had been isolated, genetic sequencing of two VDPV1s from two non-household contacts of the AFP case, has now …
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