Term
| List the three main protective mechanisms against malaria infection |
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Definition
Sickle cell trait/disease (Hgb S and C protect against malaria)
Duffy antigen negative individuals are resistant to P. vivax
Alpha (+) thalassemia for unknown reasons |
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Term
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Definition
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Term
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Definition
| Direct observation of Giemsa-stained thick and thin smears |
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Term
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Definition
Indirect immunofluorescence:
Active infection IgM titers >1:64
IgG titers >32 prior infection |
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Term
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Definition
Atovaquone plus azithromycin OR
clindamycin |
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Term
| What organism causes pinworm? |
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Definition
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Term
| Which is the largest intestinal nematode? |
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Definition
| Ascaris lumbricoides (large roundworm) |
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Term
| Can you differentiate b/w A. duodenale and N. americanus eggs in feces of individuals w/ hookworm? |
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Definition
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Term
| How does hookworm enter the body? |
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Definition
| Filariform form enters skin through feet |
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Term
| What are the two forms of hookworm? |
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Definition
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Term
| What organism causes whipworm? |
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Definition
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Term
| What is another word for flatworms and what are their subcategories? |
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Definition
Platyhelminths
Trematodes & cestodes |
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Term
| What is another word for flukes? |
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Definition
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Term
| What is another word for tapeworms? |
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Definition
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Term
| What types of nematodes can invade the lungs? |
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Definition
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Term
| How do schistosomes reproduce? |
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Definition
| Encopula- female lives entire life inside reproductive tract of male |
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Term
| Human immune response to schistosomes? |
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Definition
| None- they absorb human antigens |
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Term
| Which schistosoma species invades the urinary tract? |
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Definition
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Term
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Definition
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Term
| Divisions of tapeworm body? |
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Definition
Scolex (head)
Neck and strobila (segmented body) |
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Term
| What organism causes fish tapeworm? |
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Definition
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Term
| Difference b/w taeniasis and cysticercosis transmission? |
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Definition
| Taeniasis ingested in undercooked meat, cysticercosis ingested by fecal-oral route |
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Term
| What is a unique lab finding in fish tapeworm? |
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Definition
| Vitamin B12 deficiency (megaloblastic anemia) |
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