Today marks one year since Nigeria last reported a polio case caused by wild poliovirus, putting the country on the brink of eradicating the paralyzing disease.
The last case was reported on 24 July 2014 in the northern state of Kano. If no cases are reported in the coming weeks, the World Health Organization is expected to remove Nigeria from the list of countries where polio is endemic, leaving just two: Afghanistan and Pakistan.
Nigeria is the last polio-endemic country in Africa. The continent is poised to reach its own first full year without any illness from the virus on 11 August.