MIC 541-Exam 5-Virology 29

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  1. What causes Herpangina?
    Coxsackievirus A
  2. What group usually gets Coxsackievirus?
    Children Ages 1-7
  3. What is the size of Herpangina lesions?
    2-4 mm
  4. What is the difference between Herpangina and foot and mouth disease?
    • Location of lesions
    • Herpangina = oral
    • Foot and mouth = oral and hands and feet
  5. What type of virus is Hep A?
  6. Is Hep A chronically carried?
  7. What is the principal reservoir for Hep A?
    • Asymptomatic, short term carriers
    • People with clinical disease
  8. How is Hep A transmitted?
    Fecal oral route
  9. Describe the route of pathogenisis of Hep A:
    • Fecal oral transmission
    • Multiplies in small inestine
    • Enters blood and goes to the liver
  10. What is the incubation period for HAV?
    2-7 weeks
  11. Describe the treatment needed for Hep A infections:
  12. What are the symptoms of most Hep A infections?
    • Vague, flu-like
    • jaundice
    • dark urine
  13. What is the incidence of Hepatitis in HAV?
    • <1%
    • What type of vaccine is available for HAV?
    • Inactivated viral vaccine
  14. What type of HAV vaccine is only available in China?
  15. What can be given to people entering Hep A endemic areas?
    Pooled immune serum globulin
  16. how many serotypes are associated with the common cold?
    More than 110
  17. What is Rhinovirus sensitive to?
  18. What is the ideal temp for Rhinovirus?
    33 degrees C
  19. What makes Rhinovirus vaccine unlikely?
    Unique surface structures of serotypes
  20. How are Rhinoviruses transmitted?
    • contaminated hands
    • Fomites
  21. How are Rhinoviruses treated?
    Treat the symptoms only
  22. Why don't we develop immunity to colds?
    Pocket antigens
  23. What are examples of Calciviruses?
  24. What is the cause of 1/3 of all viral gastroenteritis cases?
    Norovirus (Norwalk agent)
  25. How is Norovirus transmitted?
    • Fecal oral routes
    • May be airborne
  26. Is Norovirus very infectious?
    Yes, very infectious
  27. What groups does Norovirus infect?
    • All ages
    • All times of the year
  28. What is the incubation period for Noroviruses?
    12-48 hours
  29. When does shedding begin for Norovirus?
    Before onset of symptoms and last up to 100h
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MIC 541-Exam 5-Virology 29
2013-05-08 07:59:53
MIC 541 Exam Virology 29

MIC 541-Exam 5-Virology 29
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