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Summary of new polioviruses this week:

• Pakistan: one WPV1 positive environmental sample • Nigeria: one cVDPV2 positive environmental sample • Sudan: one cVDPV2 case • Yemen: one cVDPV2 case

For more information, click here - http://polioeradication.org/polio-today/polio-now/this-week/

Click here to learn the difference between Wild Polio Virus (WPV) and Vaccine-derived Polio Virus. (VDPV)