Concerns as polio variant hits 13 states, FCT Medical experts say the outbreak is a public health concern and warned that it is a threat to Nigeria’s wild polio virus-free status.... By Thu Jul 08 2021 There are growing concerns over the outbreak of Vaccine Derived Poliovirus type 2 (cVDPV2) in 13 states and the Federal Capital Territory (FCT). The virus is contracted as a result of many factors, including refusing to take the shots or not completing polio vaccines. While the Wild Polio Virus (WPV) is the most common form of poliovirus, circulating vaccine-derived poliovirus or cVDPV is another form of polio that can spread within communities which Nigeria is currently experiencing.