MIC 541-Exam 5-Virology 27

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kyleannkelsey
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218510
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MIC 541-Exam 5-Virology 27
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2013-05-08 03:58:03
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MIC 541 Exam Virology 27
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MIC 541-Exam 5-Virology 27
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  1. What are the two Non-enveloped, single stranded RNA viruses?
    • Picornavirus
    • Calcivirus
  2. What classification of viruses are Calcivirus and Picornavirus ?
    • Single stranded genome
    • Non-enveloped
    • RNA viruses
  3. What are the subgroups of Picornavirus?
    • Enterovirus
    • Rhinovirus
    • Cardiovirus
  4. What group do Enterovirus, Rhinovirus and Cardiovirus belong to?
    Picornavirus
  5. What is the structure of the Enteroviruses?
    • Small 30nm
    • Resistant to environmental factors (moisture, temp, acid, organic solvents, nonionic detergents)
    • Sensitive to UV, temp >56, formaldehyde and chlorination
  6. What are Enteroviruses resistant to?
    • Most environmental conditions:
    • Acids
    • Organic solvents
    • Moisture
    • Heat
    • Nonionic detergents
    • Temperature
  7. What are Enteroviruses susceptible to?
    • Chlorination
    • Formaldehyde
    • Temps >56
    • UV light
  8. How big is a Enteroviruses naked capsule?
    30 nm
  9. Describe Picornvirus replication:
    • Virus binds to receptors
    • Viral RNA is injected into the cell
    • RNA translation occurs in the cytoplasm
    • Polyprotein is cleaved
    • Viral RNA is copied many times by Viral RNA polymerase in nucleus
    • Virus is assembled and released by lysis
  10. What does Picornavirus translation produce?
    Polyprotein
  11. What are the representative viruses of the Enterovirus group?
    • Poliovirus
    • Coxsackievirus A
    • Coxsackievirus B
    • Echovirus
    • Enterovirus 72
  12. What Enterococcus virus causes Focal necrosis and myosistis?
    Coxsackievirus A
  13. What Enterococcus virus causes Myocarditis of newborns?
    Coxsackievirus B
  14. What does Echovirus cause?
    • Aseptic meningitis
    • Enteritis
  15. What does Enterovirus 72 cause?
    Hep A
  16. What virus causes Hep A?
    Enterovirus 72
  17. What does the Rhinovirus cause?
    Common cold

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