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China
A circulating vaccine-derived poliovirus type 2 (cVDPV2) has been confirmed in China. The virus was isolated from stool specimens of an acute flaccid paralysis (AFP) case from Liangshan Yi Autonomous prefecture, Sichuan province, with onset of paralysis on 25 April 2019, and is genetically linked to a VDPV2 isolated from an environmental sample from Xinjiang province, collected on 18 April 2018. More information will be shared as it becomes available.
China continues to maintain strong routine immunization coverage both with IPV and bivalent OPV reaching more than 95% nationwide, and strong poliovirus surveillance including through environmental surveillance.
Learn more about vaccine-derived polioviruses through this short animation or this ?Coffee with Polio Experts? video.
A circulating vaccine-derived poliovirus type 2 (cVDPV2) has been confirmed in China. The virus was isolated from stool specimens of an acute flaccid paralysis (AFP) case from Liangshan Yi Autonomous prefecture, Sichuan province, with onset of paralysis on 25 April 2019, and is genetically linked to a VDPV2 isolated from an environmental sample from Xinjiang province, collected on 18 April 2018. More information will be shared as it becomes available.
China continues to maintain strong routine immunization coverage both with IPV and bivalent OPV reaching more than 95% nationwide, and strong poliovirus surveillance including through environmental surveillance.
Learn more about vaccine-derived polioviruses through this short animation or this ?Coffee with Polio Experts? video.
