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23 Cards in this Set
- Front
- Back
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Ehrlichosis is caused by ___. It is a ___ parasite.
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Ehrlichia chaffeensis
intracellular |
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Ehlichia is part of the Rickettsiae family. Whereas Ricketssia all parasitize ___, Ehrlichia parasitizes ___.
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endothelial cells
leukocytes |
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Ehrlichia gram stain
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weakly negative
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Ehrlichosis patients present with ___ (3)
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leukopenia
thrombocytopenia elevated serum transaminase |
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Ehrlichia vector
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tick
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Ehrlichosis mortality
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<5%
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Ehrlichosis diagnosis
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LM (giemsa stain)
serology DNA probes |
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Ehrlichosis treatment
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doxycycline
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Ehrlichia survive inside leukocytes by __. They proliferate inside the phagosome creating bodies called ___.
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inhibiting lysosomal fusion
morulae |
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Q fever is caused by ___.
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Coxiella burnetii
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Coxiella is a ___ parasite. It infects ___ cells.
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intracellular
macrophage |
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T/F: Coxiella survives by inhibiting lysosomal fusion
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false: can survive at low pH
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the 2 transmission cycles of Coxiella
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by insect, among farm animals
farm animal milk/urine/feces to humans |
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Q fever presents with (2). In contrast to other Rickettsial diseases, there is usually no ___.
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FCHM
low grade pneumonia rash |
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diagnosis of Coxiella
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serology
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Cultivation of Coxiella is not recommended because ___
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dangerous
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Coxiella treatment
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tetracycline
chloramphenicol |
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T/F: A vaccine for Coxiella exists
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true, but not used
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Bartonella gram stain and morphology
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gram negative
rod |
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Trench fever is caused by ___
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B. quintana
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Trench fever presents with ___ (3)
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FCHM
severe pain in tibia rash |
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Cat scratch fever is caused by ___
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B. henselae
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Cat scratch fever presents with ___ (4)
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edema
lymphadenitis myalgia anorexia |
