Status: no longer poliovirus-infected, but at high risk of outbreaks

Due to sub-national immunity gaps in Ukraine, the country is particularly vulnerable to either reinfection or re-emergence of poliovirus.  The priority is to maintain high levels of immunity and strong disease surveillance, to minimise the risk and consequences associated with a potential re-infection or re-emergence of poliovirus.

International Health Regulations

Ukraine is classified by the International Health Regulations (IHR) as a state no longer infected by WPV1 or cVDPV, but which remains vulnerable to re-infection by WPV or cVDPV. Hence it is subject to temporary recommendations as of August 2017.

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Key at-risk: no longer poliovirus-infected, but at high risk of outbreaks
Outbreak: has stopped indigenous WPV circulation but affected by outbreak of imported WPV or circulating vaccine-derived poliovirus
Endemic: has never stopped indigenous wild poliovirus (WPV) circulation

Travel advice

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.


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