The West Africa nation of Ghana has formally adopted the Inactive Polio Vaccine (IPV) as the routine agent of immunization against polio for children under 5 years of age. The IPV has replaced the Oral...

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One new case of circulating vaccine-derived poliovirus type 1 (cVDPV1) was reported in the past week in Madagascar, with onset of paralysis on 22 August from Sud-Ouest province, according to the Global...