Circulating vaccine-derived poliovirus – Lao People’s Democratic Republic

[Admin]

On 8 December 2015, the National IHR Focal Point of Lao People’s Democratic Republic (PDR) notified WHO of 2 additional VDPV1 cases. These cases are from Xaisomboun, a previously unaffected province. To date, the total number of confirmed cVDPV1 cases in this outbreak is 5.

The first case is a 7 month-old male with an onset of paralysis on 3 October. He lives in Hom district, Xaisomboun province. The case received oral polio vaccine (OPV) on 30 September. On 4 November, stool samples were collected from 2 close contacts; both of these contacts tested positive for cVDPV1.

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