Polio Virus- An Overview

Polio Virus

Structure of Polio Virus Poliovirus is a member of a family of viruses called the Picornaviridae. Virions are spherical in shape with a diameter of about 27nm. The particles are simple in that they are composed of a protein shell surrounding the naked RNA genome. The genome is monopartite, linear ssRNA(+) genome of 7.2-8.5 kb, polyadenylated, composed of a single ORF encoding …

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