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15 Oct 2015 description
  • In Lao Democratic People’s Republic a circulating vaccine-derived poliovirus type 1 (cVDPV1) outbreak has been confirmed, with one case, an eight year old boy who had onset of paralysis on 7 September. Outbreaks of cVDPVs can arise in areas of low population immunity, emphasizing the importance of strong vaccination coverage. Learn more about VDPVs.

26 Nov 2014 description
  • In response to the outbreak of circulating vaccine-derived poliovirus (cVDPV) in South Sudan, over 19,000 children were vaccinated last week in Bentiu Poc, where the two cases were reported. Outbreak response plans are in place to hold three rounds of supplementary immunization activities (SIAs) in high risk areas to stop transmission of the virus.