부산대학교 도서관

What is already known on this topic? Nigeria is one of only three countries in the world where wild poliovirus (WPV) transmission has never been interrupted. Nigeria's 2012 national polio eradication emergency plan has led to improved quality of vaccination efforts, increased accountability, and a decline in WPV cases from 2013 to 2014. What is added by this report? The number of WPV cases decreased from six during 2014 to zero through July 2015. Only one reported case of circulating vaccine-derived poliovirus type 2 (cVDPV2) has been reported to date in 2015; however, the number of reported cVDPV2 cases increased from 2013 to 2014. Although genetic diversity declined during 2012–2014 and surveillance performance indicators have been met, gaps in surveillance persist. What are the implications for public health practice? Challenges include maintaining political support and program funding in the absence of active WPV transmission, maintaining high levels of population immunity in hard-to-reach areas, and accessing children in security-compromised parts of the northeastern states. Pending the clearance of the 218 remaining laboratory results, Nigeria is poised to be removed from the World Health Organization's list of polio-endemic countries in September 2015. When this occurs, certification of a polio-free Africa region by the end of 2017 will be achievable. Documenting lessons learned during this fight for polio eradication will allow Nigeria to successfully use existing infrastructure to address other public health problems. [ABSTRACT FROM AUTHOR]