Status: affected by circulating vaccine-derived poliovirus type 3 (cVDPV3)
A case of circulating vaccine-derived poliovirus type 3 (cVDPV3) was confirmed in an unvaccinated girl aged three years and nine months in Israel. The girl had developed acute flaccid paralysis and upon testing of her stool, poliovirus was confirmed.
Further testing of the virus isolated from the girl revealed genetic links to VDPV3-strains detected in environmental samples collected between September 2021 and January 2022 from sites in Jerusalem and Bethlehem.
Circulating VDPV3 has also been confirmed in a sample taken from a contact in Jerusalem. This child does not display any symptoms of paralysis.
Local health authorities are conducting field, epidemiological and virological investigations, to determine more clearly the source and origin of the isolated virus, and potential risk of further spread associated with it.
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.