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Additional Polio Cases Confirmed

December 13, 2020 • 10:07 am CST
(Precision Vaccinations)

According to the latest report from the Global Polio Eradication Initiative (GPEI), 4 countries reported additional polio cases, all involving vaccine-derived polio, as of December 9, 2020.

Pakistan: five WPV1 positive environmental samples, six cVDPV2 cases, and eight cVDPV2 positive environmental samples; Central African Republic: one cVDPV2 case; Chad: nine cVDPV2 cases; Somalia: one cVDPV2 case.

While rare, vaccine-derived polioviruses cases occur when the weakened live virus in the oral polio vaccine passes among under-immunized populations and, over time, changes to a form that can cause paralysis says the GPEI. Since 2000, the inactivated polio vaccine is the only vaccine that has been given in the USA, while the oral polio vaccine is offered in other countries.

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