Status: no longer affected by circulating vaccine-derived poliovirus 2 (cVDPV2) but remains vulnerable to re-infection
Polio this week in Senegal
- No cVDPV2 cases were reported this week. There have been no polio cases since 2021.
- One cVDPV2 positive environmental sample was collected in January 2022.
International Health Regulations
Countries affected by poliovirus circulation are subject to temporary recommendations issued by the Emergency Committee of the International Health Regulations on Poliovirus, under the auspices of the Public Health Emergency of International Concern. The latest report by the Committee is effective as of May 2023).
WHO’s International Travel and Health 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.