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Microbiology Unit 4
Final 8
17
Biology
Undergraduate 1
04/19/2009

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Cards

Term
WHat is cryptococcus neoformans?
Definition
fungal disease that is inhaled and spreads to CNS and meninges
Term
What is the main characteristic of cryptococcus neoformans?
Definition
thick capsule
Term
Where and what is cryptococcus neoformans associated with?
Definition
urban settings, pigeon droppings
Term
Who is at risk for fungal infections of the nervous system?
Definition
immunocompromised (AIDS patients)
Term
How do you diagnose cryptococcus neoformans?
Definition
negative staining, fluorescent antibody test
Term
How do you treat a fungal infection?
Definition
antifungal (amphotericin B and flucytosine)
Term
What causes sleeping sickness? what kind of infection is it?
Definition
african trypanosomiasis; parastic ( caused by flagellate protozoan from bite of tsetse fly)
Term
How do you treat parasitic infections?
Definition
chemotherapies (not when CNS is involved) and eflornithine
Term
What is eflornithine?
Definition
treats parasitic infection (expensive, worsks late in disease, blocks facial hair growth for women)
Term
How do you prevent sleeping sickness?
Definition
get rid of tsetse fly
Term
What do they think chronic fatigue syndrome is caused by?
Definition
viral infection to the brain
Term
What do they think epstein-barr virus is caused by?
Definition
immune response to infection in the blood
Term
What are different prion infectionsin animals?
Definition
sheep scrapie, bovine spongiform encephalopathy (mad cow), chronic wasting isease
Term
what are prion infections in humans?
Definition
kuru and creutzfelt-Jakob disese
Term
How is Kuru spread?
Definition
cannibalism
Term
How do prions infect?
Definition
cause lesions in the brain (deposit protein in brain)
Term
How do you kill a prion?
Definition
incinerate it
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