Hard to crack: molecules need to penetrate into the interior of the viruses to destroy them.

(nonenveloped virus)

Poliovirus is a nonenveloped virus having the shape of an icosahedral capsid (spherical), belonging to the Picornaviridae family. It may cause poliomyelitis (infantile paralysis).

The main transmission path is direct or indirect contact with contaminated persons or objects.

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