A. Corona Virus New variant
B. Type-II Cancer
C. Poliovirus Type-II
D. Wild Poliovirus
Submitted by: Irfan
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A vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus.
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