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

Between 6 and 16 February 2016, the National IHR Focal Point (NFP) of Lao People’s Democratic Republic (PDR) notified WHO of 3 additional cases of vaccine-derived poliovirus type 1 (VDPV1). Neither of the two cases received oral polio vaccine (OPV). On 3 February 2016, the National Institute of Infectious Diseases, Japan reported that stool samples for both cases tested positive for type 1 circulating vaccine-derived polio virus (cVDPV1). There is no epidemiological link between the two cases.
Source: WHO Disease Outbreaks - Category: Infectious Diseases Tags: immunization [subject], vaccination, poliomyelitis [subject], polio, poliovirus, polio encephalitis, travel [subject], travel and health, air travel, Disease outbreak news [doctype], Lao People's Democratic Republic [country], Western Pacific Region [regi Source Type: news