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6 Cards in this Set
- Front
- Back
F. tularensis causes 2 forms of tularemia. Describe both forms.
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Ulceroglandular form(70-80% handling of infected animals)
presents with ulcers at the site of infection, lymphadenopathy at the draining lymph nodes and fever. The more severe form(typhoidal)(10-15% ingestion) often includes pneumonia and symptoms of bacteremia(fevers, chills, myalgias, malaise and weight loss. |
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How is F. tularensis spread?
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Via vectors(ticks, deerflies mosquitoes, and handling of infected animals(rabbits and deer). In the US it is most commonly acquired from ticks.
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How virulent is F. tularensis?
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Highly virulent. Requires only 10-50 organisms to cause disease. Most laboratories will not culture it and there is concern over its bioterrorism potential.
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F. tularensis has what special culture requirement?
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Most strains require cysteine.
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How is F. tularensis diagnosed?
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Serological tests, since lab culture is dangerous.
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What is the drug of choice for F. tularensis?
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Streptomycin
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