Updated: 10/26/2015

Introduction to Picornaviruses

Topic
Review Topic
0
0
Introduction
  • Picornaviruses are broken into 3 groups
    • enteroviruses
      • acid-stable
      • most common in children
      • fecal-oral transmission
      • can cause aseptic (viral) meningitis
        • the most common cause of aseptic meningitis in the U.S.
      • includes
        • poliovirus
        • coxsackievirus
        • echovirus
    • rhinoviruses
      • not acid-stable
      • grows at 33°C
      • includes
        • rhinovirus
    • hepatovirus
      • hepatitis A virus
  • Characteristics
    • small ("pico-RNA-virus")
    • naked capsid (non-enveloped)
      • resistant to alcohol and detergents
    • highest incidence in summer and fall seasons
    • RNA
      • single-stranded
      • positive-sense
      • linear
    • icosahedral
  • Translation process is unique
    • RNA translated into 1 large polypeptide
    • polypeptide then cleaved to form functional viral proteins
 

Please rate topic.

Average 5.0 of 1 Ratings

Thank you for rating! Please vote below and help us build the most advanced adaptive learning platform in medicine

The complexity of this topic is appropriate for?
How important is this topic for board examinations?
How important is this topic for clinical practice?
Topic COMMENTS (2)
Private Note