Status: affected by circulating vaccine-derived poliovirus type 2 (cVDPV2)
Liberia is affected by cVDPV2, linked to an outbreak originating in Côte d’Ivoire. GPEI partners, including through our regional and country offices, are continuing to assist Liberian health authorities in conducting a complete investigation, including to ascertain more clearly the origin/source of the isolated virus, and assess potential risk of spread within the country as well as internationally.
Polio this week in Liberia
- No case of circulating vaccine-derived poliovirus type 2 (cVDPV2) was reported this week. There are three cVDPV2 cases in the country in 2021.
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 as of February 2022.
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.