Africa free of wild polio
Africa has been declared free of wild polio by the Africa Regional Certification Committee. Nigeria was the last country on the continent to be declared so, having previously accounted for half of the global cases.
Twenty-five years ago thousands of young children in Africa lost mobility due to being infected by polio.
Polio affects children, typically under the age of five. It can result in paralysis and death.
No cure exists, however, a vaccine can provide lifelong protection.
The disease is now found exclusively in Afghanistan and Pakistan.