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12 Cards in this Set
- Front
- Back
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What's the difference between Cryptosporidium and Cryptococcus?
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Cryptosporidium is a intestinal sporozoan.
Cryptococcus is a yeast parasite. |
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What distinguishes Babesiosis from Malaria infections?
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Babesia smears lack pigmentation and have a "tetrad" characteristic.
Clinically, Babesiosis has a NON-periodic fever. |
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What's the definitive host for Toxoplasma gondii?
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Kitties.
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What are the three infection routes for Toxo?
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1. Fecal-Oral: ingestion of oocysts from cat poop. Infectious in two days. Clean the litter box more often.
2. Vertically: transplacental innoculation 3. Ingestion: Eating meat contaminated with bradyzoites |
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Where does Toxoplasma harbor in the cat?
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Intracellularly in the cat intestine.
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What are the two life cycle stages of Toxo in humans?
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1. Tachyzoites: acute infection
2. Bradyzoites: intracellular/latent infection |
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How does a latent Toxo infection become problematic?
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Reactivation during periods of immuno-compromise. AIDS pts susceptible to Toxoplasmic Encephalitis
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When is a Toxo infection harmful in pregnancy?
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Acute infection of a pregnant woman:
1st Tri: abortion or stillbirth 2nd+ Tri: Neural complications |
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What MRI pattern is characteristic of Cerebral Toxoplasmosis?
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Single focal lesion
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What intracellular GI zoonotic is found in the majority of N. American surface water?
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Cryptosporidium ssp.
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Who is at risk for Crypto infection?
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ICZ and children
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What diarrheal illness may result from eating contaminated fruit?
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Cyclosporiasis. Clinically indistinguishable from Crypto and Iso
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