Polio immunisation CREDIT: metro.co.uk
Nigeria’s quest to be certified polio-free by the World Health Organisation (WHO) has been shifted from December 2019 to June 2020. The country was supposed be certified polio free after not reporting any case of wild poliovirus (WPV) for three years- since August 2016.
But the target is threatened and the date shifted by the impact of circulating Vaccine-Derived Polio Virus type 2 (cVDPV2), poor rountine immunization, insecurity is some parts of northern Nigeria, and rise in cases of polio in the remaining polio endemic countries- Pakistan and Afghanistan- and some parts of Africa.
In West Africa and the Lake Chad sub-region, a cVDPV2 outbreak originating from Jigawa state, Nigeria, continues to spread. Following detection of this outbreak in Cameroon, Ghana, Benin and the Republic of Niger earlier this year and in 2018, the virus has now been detected in Chad, Togo and Côte d’Ivoire.