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29 Oct 2015 description
  • On 20 October, the Strategic Advisory Group of Experts on immunization (SAGE) confirmed that the globally coordinated withdrawal of the type 2 component in oral polio vaccine (OPV) should occur in April 2016, specifically in a window from 17 April to 1 May. Countries should intensify their preparatory efforts to switch from trivalent OPV to bivalent OPV to meet this timeline.

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.

18 Sep 2015 description
  • Pakistan launched a nationwide polio campaign this week to vaccinate more than 35 million children in 163 districts of the country. Approximately 200,000 polio workers are participating in the polio campaign, during which Vitamin A will also be distributed.
10 Sep 2015 description
  • A case of vaccine-derived poliovirus type 2 (VDPV2) has been reported with onset of paralysis on 20 July 2015 in Bamako city, Mali. The virus was isolated from a 19-month old boy of Guinean nationality. The closest genetic match to this case is from a case from Kankan, Guinea, with onset of paralysis on 30 August 2014. The genetic changes suggest that the cVDPV2 has been circulating for more than 12 months. Discussions are currently ongoing with national health authorities to plan and implement an urgent outbreak response.