MMWR News Synopsis for Friday, July 26, 2019 Progress Toward Poliomyelitis Eradication — Nigeria, January 2018–May 2019

CDC/ACIP [to 27 Jul 2019]
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MMWR News Synopsis for Friday, July 26, 2019
Progress Toward Poliomyelitis Eradication — Nigeria, January 2018–May 2019
Initiatives to provide polio vaccine to children in insurgent-held areas of northeastern Nigeria have been mostly successful; however, an estimated 60,000 children in inaccessible areas remain unvaccinated. A new report describes the progress toward polio eradication in Nigeria during January 2018-May 2019. In addition to vigorous vaccination efforts, surveillance in insurgent-held areas has progressively improved. Nigeria’s last reported case of wild poliovirus occurred in September of 2016. With review of further improvements in immunization and surveillance in northeastern Nigeria and neighboring countries, the African Regional Certification Commission may be able to conclude in 2020 that WPV transmission has been interrupted in the WHO Region of Africa. However, since 2018, two outbreaks of circulating vaccine-derived poliovirus type 2 (cVDPV2) have affected 14 Nigerian states, Niger Republic, and Cameroon. To achieve interruption of all cVDPV2 transmission in Nigeria and other countries, the quality of subsequent polio mass campaigns must increase and include insurgent-held areas.