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18 Cards in this Set
- Front
- Back
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Where is anthrax commonly picked up?
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On animal pelts
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When is anthrax contracted?
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When its spores are deposited on an open wound
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What is the etiologic agent of anthrax?
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Bacillus anthracis
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What happens when a Bacillus anthracis spore is deposited on an open wound?
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It germinates and produces a dermatotoxin which causes the formation of a malignant pustule
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Characteristic feature of the malignant pustules of anthrax:
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BLACK ESCHAR
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How is Bacillus anthracis identified?
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Gram pos rods
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Is bacillus anthracis motile or nonmotile?
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B. anthracis is the only nonmotile bacillus species
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Other than motility how is B. anthracis identified?
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It's encapsulated
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What makes Bacillus anthracis so virulent?
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Its capsule
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Capsule is made of:
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polyglutamic acid
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What does Bacillus anthracis produce?
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Exotoxin
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What is the exotoxin of B. anthracis composed of?
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3 distinct proteins
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What are the 3 distinct proteins/lipoproteins of B. Anthracis?
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Factor 1 - Edema factor
Factor 2 - Protective antigen Factor 3 - Lethal factor |
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Symptoms of Anthrax infection:
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Progression thru stages of a painless, pruritic papule on exposed skin, to a black eschar, and isolation of B. anthracis from exudate
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How will a Staph skin lesion differ from an anthrax lesion?
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Both could be black, but staph will be painful
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How would you know if the lesion was caused by Francisella tularensis?
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That is gram neg
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What is the etiologic agent of the plague which causes symptoms similar to both Tularemia and Anthrax?
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Yersinia pestis
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3 treatment agents for anthrax:
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-Penicillin G
-Ciprofloxacin -Doxycycline |
