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Status: endemic

Nigeria is one of the most entrenched reservoirs of wild poliovirus in the world. It is the only country with ongoing transmission of all three serotypes: wild poliovirus type 1, wild poliovirus type 3, and circulating vaccine-derived poliovirus type 2. States in the north of the country are the main source of polio infections elsewhere in Nigeria and in neighbouring countries. In 2009, operational improvements in these northern states led to a 90% decline in cases of wild poliovirus type 1 and a 50% decline in overall cases compared with 2008.

Polio Eradication Emergency Plan 2014 for Nigeria [pdf]

Financial resource requirements (2013-2015) for Nigeria

Polio this week in Nigeria

    • No new WPV cases were reported this week. The total number of WPV1 cases for 2014 remains at one and for 2013 at 53.
    • No new cVDPV2 cases were reported in the past week. The total number of cVDPV2 cases for 2014 is one, and for 2013 is four. The most recent cVDPV case had onset of paralysis on 9 February (from Damboa, Borno).
    • Analysis of recent Immunization Plus Days (IPDs) indicates that the overall quality, i.e. coverage, continues to improve, including in highest-risk areas. According to Lot Quality Assurance Sampling (LQAS), almost 90% of Local Government Areas (LGAs) in the 11 high-risk states achieved coverage of at least 80% during IPDs in March. This compares to less than 65% of LGAs in these same states achieving the same level of coverage just 12 months ago.
    • The most recent nationwide IPDs took place on 12-14 April, using a combination of bivalent and trivalent OPV. Subnational IPDs in northern Nigeria are planned for May and June.

    Nigeria Countdown