Global Polio Eradication Efforts Face New Challenge with Vaccine-Derived Poliovirus

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By Michael Gwarisa Even though the world has made remarkable progress in the fight against polio, with wild poliovirus now circulating in only two countries, Afghanistan and Pakistan, a new challenge has emerged: vaccine-derived poliovirus (VDPV), which is causing outbreaks in previously polio-free regions. The development underscores the urgent need for robust immunization programmes and global cooperation to achieve the goal of complete polio eradication by 2023, as outlined in the Immunization Agenda 2030 (IA2030). The Polio Eradication Journey Polio, a debilitating and potentially fatal disease, has been targeted for…

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Facts About Vaccine Derived-Polio Virus Circulating In Zimbabwe

By Michael Gwarisa In November 2023, Zimbabwe’s environmental surveillance system picked a vaccine-derived poliovirus type 2 (cVDPV) strain, circulating in the sewage system in Harare’s high density suburbs namely Budiriro, Mbare and Mufakose.  A similar variant was detected in a 10-year-old child from Sanyati District in Mashonaland, West Province. The child has since developed paralysis following the Polio infection. Two other children in Mbare have had the same strain detected in them despite the absence of paralysis developing in either of them. Over the past few days, the Ministry of…

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