Polio and prevention
Data and monitoring
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Preparing for post eradication
Certification of polio eradication is conducted on a regional basis. Each region can consider certification only when all countries in the area demonstrate the absence of wild poliovirus transmission for at least three consecutive years in the presence of certification standard surveillance.
In addition, all facilities holding wild poliovirus infectious and potentially infectious materials must have implemented bio-containment measures according to the Global action plan for laboratory containment of wild poliovirus (2003).
Year certified polio-free
WHO African Region
WHO Region of the Americas
WHO South-East Asia Region
WHO European Region
WHO Eastern Mediterranean Region
WHO Western Pacific Region
Achieving certification of global polio eradication: criteria
In 1997, the Global Commission for the Certification of the Eradication of Poliomyelitis (GCC) finalized the criteria for certifying whether the goal of polio eradication is achieved.
1. Achieving certification-standard surveillance
In endemic regions:
achieve and sustain certification standard surveillance for acute flaccid paralysis (AFP) at the national level
identify and close any gaps in surveillance performance at the sub-national level in all countries
increase the speed of surveillance and virological data analysis to ensure timely emergency response.
In certified polio-free regions:
maintain certification-standard surveillance for acute flaccid paralysis
ensure highest possible immunity levels against wild poliovirus
develop action plans for responding rapidly to importations of wild poliovirus
integrate AFP reporting into national surveillance mechanisms to respond to other important diseases.
2. Ensuring access to a WHO-accredited laboratory
reduce the time required for intratypic differentiation (ITD) results to be available from endemic areas
ITD capacity established in all polio reservoir countries
sustain the international capacity to process all specimens from AFP cases in WHO-accredited laboratories through global certification and oral polio vaccine (OPV) cessation.
3. Ensuring containment of wild polioviruses and vaccine-derived polioviruses (VDPVs)
further dissemination and national implementation of activities outlined in the Global action plan for laboratory containment of wild polioviruses 2003
complete laboratory survey and inventory activities in all polio-free countries
prepare for implementation of phase II laboratory containment activities prior to global certification
initiate phase II containment activities in all countries
complete biosafety level-3 (BSL-3)/polio containment in facilities producing IPV from wild poliovirus.
4. Completing the certification process
regional certification commissions (RCC) in the remaining three polio-endemic regions to train national certification commissions (NCC)
NCCs to collect, review and decide on the national documentation through consultations
The GCC to finalize:
- the data requirements for global certification from the three certified polio-free regions
- the role of environmental surveillance as a supplemental strategy
- mechanisms for reviewing and verifying documentation on the containment of laboratory stocks and IPV production.
Third edition of the Global Action Plan to minimize post eradication poliovirus facility-associated risk
Certification commissions’ reports
Surveillance indicators for certification standard surveillance
The Global Polio Eradication Initiative
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