Nonenveloped (Naked) RNA Viruses

Published on 18/02/2015 by admin

Filed under Allergy and Immunology

Last modified 18/02/2015

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Chapter 23

Nonenveloped (Naked) RNA Viruses

Picornaviridae

• This family of small viruses with a naked, icosahedral capsid and single-stranded (+) RNA genome includes the enteroviruses and rhinoviruses.

• The enteroviruses are acid stable, can survive in the gastrointestinal (GI) tract, and are transmitted primarily by the fecal-oral route.

1. Pathogenesis (Fig. 23-1)

2. Diseases due to enteroviruses (Box 23-1)