Stopping outbreaks and limiting the risk of circulating vaccine-derived poliovirus (cVDPV) emergence requires increasing assistance to cVDPV type 2 outbreak countries; using a novel, stabilized OPV2 in future; maintaining high population immunity in all countries; and ending all OPV use after certification of polio eradication. To address current cVDPV2 outbreaks, the CDC Polio Response is working to scale up and place additional technical experts for initial deployments in countries with active outbreaks to provide technical support.
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