On 17 September 2020, the Global Polio Eradication Initiative reported a case of polio (cVDPV2) in Kassala province, Sudan. There have been 22 cVDPV2 cases reported in Sudan in 2020 so far. The initial viruses were linked to the ongoing outbreak in Chad followed by local transmission.
The World Health Organization recommends that "all travellers to polio-affected areas be fully vaccinated against polio. Residents (and visitors for more than 4 weeks) from infected areas should receive an additional dose of OPV or inactivated polio vaccine (IPV) within 4 weeks to 12 months of travel".
For further information see the TRAVAX Poliomyelitis page.