Term
cosmopolitan intestinal parasite with whip-like appearance
anemia, dysentery, rectal prolapse
retardation in heavy infections of children
ingestion of J1 is infective stage |
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Definition
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Term
| eggs are barrel shaped with bi-polar plugs |
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Definition
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Term
| eggs resemble Trichuris trichiura but have thicker, striated shells |
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Definition
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Term
eggs from rat feces
require several weeks to embryonate on the ground, not at body temp
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Definition
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Term
largest intracellular parasite
infective larvae are eaten in pork
humans are dead end host because muscle tissue usually not eaten by other carnivores
form nurse cell complexes in striated muscle |
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Definition
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Term
only parasitic females
undergo parasitic or free living stage
females reproduce by parthenogenesis |
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Definition
| Strongyloides stercoralis |
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Term
hookworm
cutting plates, not teeth
more prevalent than Ancylostoma duodenale
anemia and protein malnourishment |
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Definition
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Term
hookworm
less prevalent than Necator americanus
development arrest in immune hosts
anemia and protein malnourishment |
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Definition
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Term
common human roundworm
migratory path causes pneumonitis from lung damage
abdominal blockage and allergic symptoms |
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Definition
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Term
cosmopolitan roundworm of dogs
J3 is infective stage
can cause OLM and VLM in aberrant host
migratory in new/young hosts
no migration in old/previous but dormant
dormant J3s can go transplacental or transmammary |
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Definition
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Term
raccoon roundworm
J3 is infective
cannot develop to adults in humans
infective eggs can wander causing VLM
larvae have predilection for CNS in wrong host causing NLM |
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Definition
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Term
human pinworm
infection occurs from ingestion of J3s
perianal itching (pruritis)
Retroinfection
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Definition
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