As of today, 21 August 2019, it has been three years since a child in Nigeria was paralyzed by the wild poliovirus. This means that the entire World Health Organization African region could be certified as wild poliovirus-free as soon as mid-2020. 
Nigeria nears Polio free status
As of today, 21 August 2019, it has been three years since a child in Nigeria was paralyzed by the wild poliovirus. This means that the entire World Health Organization African region could be certified as wild poliovirus-free as soon as mid-2020.