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Liberia

Status: imported poliovirus

Liberia is one of the countries in the “wild poliovirus importation belt” – a band of countries stretching from west Africa to central Africa and the Horn of Africa, which are recurrently re-infected with poliovirus originating from northern Nigeria. The immediate priority is to stop all active outbreaks using mop-up campaigns with monovalent oral polio vaccine in the infected areas, combined with a series of large-scale, synchronized supplementary immunization activities across most of the “importation belt” countries to protect against further importations.

  

Polio campaign monitoring

  

Polio this week in West Africa

  • No wild poliovirus type 1 (WPV-1) cases have been reported in West Africa in 2014. The most recent WPV-1 case in the region occurred in Tahoua province, Niger, with onset of paralysis on 15 November 2012.
  • No new cases of circulating vaccine derived polio virus (cVDPV) were reported this week. The last case of cVDPV was reported in Niger on 11 July 2013.
  • Even as polio programme staff across West Africa support efforts to control the Ebola outbreak affecting the region, a large scale synchronized vaccination campaign will be rolled out starting 19-23 September in those countries not affected by Ebola, using trivalent OPV.