MIC 541-Exam 5-Virology 28

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  1. What does Cardiovirus cause?
  2. What does Aphthovirus cause?
    Foot and mouth disease
  3. What are the possible outcomes of the poliovirus and their relative proportions?
    • 90% asymptomatic
    • 5-10% aseptic meningitis
    • <5% minor non-CNS illness
    • 1% Paralytic
  4. What type of virus is poliovirus?
  5. What are the reservoirs for enteroviruses?
    Only Humans
  6. What is the transmission route for Poliovirus?
    • Fecal oral primarily
    • Via: houseflies,wastewater and sewage
  7. What can CNS invasive Poliomyelitis cause?
    Neuromuscular Paralysis
  8. After ingestion of Poliovirus, what is the viruses action?
    • Adheres to receptors in the oropharynx and intestine
    • Multiples there sheds into the throat, feces and blood
  9. How long do most poliovirus infections last?
    Short term, mild
  10. What causes flaccid paralysis in a poliovirus infection?
    Viral infection of the CNS
  11. What is post-polio syndrome?
    Progressive muscle deterioration decades after infection
  12. How often does post-polio syndrome occur?
    25-50% of childhood polio cases
  13. What are the symptoms of polio invasion of the spinal tissue?
    • Muscle pain
    • Spasms
    • Meningeal inflammation
    • Vague hypersensitivity
  14. Is nervous tissue destroyed in polio patients?
    No, just infected
  15. What is the treatment for those infected with polio?
  16. What are the vaccines available for Polio?
    • IPV = inactivated polio vaccine or Salk vaccine
    • Oral polio vaccine or Sabin vaccine
  17. What polio vaccine is no longer used in the U.S.?
    Sabin vaccine
  18. What type of vaccine is the Sabin vaccine?
    Oral attenuated vaccine
  19. When was worldwide eradication of Polio predicted?
  20. What are the most common nonpolio enteroviruses?
    • Coxsackieviruses
    • Echoviruses
    • Nonpolioenteroviruses
  21. How do other enteroviruses compare to polioviruses?
    • similar infectious characteristics and epidemiology
    • Less virulent
  22. On rare cases what non-polio enteroviruses can cause paralysis, meningitis and encephalitis?
    Echovirus and Coxsackievirus
  23. What are the symptoms of Herpangina?
    • High fever
    • Sore throat
    • Lesions in the oral cavity
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MIC 541-Exam 5-Virology 28
2013-05-08 07:59:23
MIC 541 Exam Virology 28

MIC 541-Exam 5-Virology 28
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