The first wild poliovirus case in Africa in more than five years has been detected in a young child in Malawi, the World Health Organization said. The Malawian health authorities have declared an outbreak of wild poliovirus type 1 after a case was detected in the capital Lilongwe, the WHO said. Laboratory analysis showed that the detected strain is linked to one that has been circulating in Sindh Province in Pakistan. Polio remains endemic in Pakistan and its neighbour Afghanistan. Africa was declared free of indigenous wild polio in August 2020 after eliminating all forms of wild polio. No polio cases had occurred on the continent for the past four years — the threshold for eradication.