A vaccine-derived poliovirus (VDPV) is a rare strain of poliovirus, genetically mutated from the strain contained in oral polio vaccine (OPV).

• 疫苗衍生脊髓灰质炎病毒（VDPV）是一种罕见的脊髓灰质炎病毒株，由口服脊髓灰质炎疫苗（OPV）里的病毒株遗传变异而来。