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Niger

Status: imported poliovirus

In January 2006, Niger was taken off the endemic country list, having successfully interrupted indigenous wild poliovirus transmission for a period of 12 months. Since that time, Niger has been subject to repeated polio importations, due to its proximity to northern Nigeria. In all instances, adherence to international outbreak response has prevented imported polioviruses from re-establishing themselves. The dramatic decrease in new cases in northern Nigeria in 2010 has had secondary benefits for Niger, as exposure to imported viruses has decreased. Nevertheless, cases have been reported in 2010. Niger will continue to be at particular risk of re-infection until all indigenous wild poliovirus transmission has been interrupted in Nigeria.

  

Polio campaign monitoring

  

Polio this week in West Africa

  • No wild poliovirus type 1 (WPV1) cases have been reported in the past week. The most recent WPV1 case in the region occurred in Tahoua province, Niger, with onset of paralysis on 15 November 2012.
  • National Immunization Days (NIDs) are planned in Liberia and Subnational Immunization Days (SNIDs) in Niger in June with dates to be confirmed. National Immunization Days are scheduled in Sierra Leone in July.
  • Liberia and Sierra Leone have both conducted polio and measles vaccination campaigns during April and May. These are the first campaigns conducted in these countries since 2013 (due to the Ebola outbreak). Polio staff in these countries continue to assist in the Ebola outbreak response efforts.