Laos reports 5th circulating vaccine-derived poliovirus case; unique challenges

A fifth case of circulating vaccine-derived poliovirus type 1 (cVDPV1) was reported in the Lao People's Democratic Republic (Lao PDR) during the past week. The case was reported from Saysomboun district in Xaysomboune province, and had onset of paralysis on 28 October. This is the most recent date of onset, according to the Global Polio Eradication Initiative (GPEI). In ["]