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13 Cards in this Set
- Front
- Back
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How many hosts do cestodes have? What is ingested by the intermediate host?
How is the definitive host infected? |
Two- intermediate & definitive
Eggs Ingestion of the infected intermediate host |
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Which host in general displays more clinical signs?
Why? |
Intermediate
Make weak, easier for definitive host to catch and complete life cycle |
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In which tapes are humans are the definitive host?
Which are humans intermediate hosts? |
Beef, *pork, dog and fish
Echinococcus and *pork tape |
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What are the signs in humans when they are the definitive host of tapes?
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Usually mild GI
In heavy infestations can cause obstructions |
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What is the main sign when humans serve as the intermediate host to Taenia solium?
What kind of infection is possible in humans? |
Neurocystercercosis
Auto infection (from themselves) |
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What is the best way to control Taeniasis?
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Human sanitation and meat inspection (only 50% effective)
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Which species of Echinococcus has hydatid cysts that are individual and large and often found in the liver?
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E. granulosis
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Which species of Echinococcus has alveolar cysts that are multilocular and small and often found in the liver and can metastasize to lungs?
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E. multilocularis
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What are the reservoirs for Echinococcus?
Who serves as the natural intermediate host? |
All canids
Their prey, often sheep |
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How are humans infected by Ehinococcus?
Where from? Can humans eat infected meat safely? |
Ingestion of eggs
Canid feces Yes |
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What is the best way to treat Echinococcosis?
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De-worm with praziquantel
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Why are cestodes a neglected problem?
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-Occurs in poor countries/areas
-Difficult and expensive to diagnosis -Lack of treatment options |
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What are the clinical signs in intermediate hosts?
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symptoms are according to which organ/system is affected
anaphylactic symptom follow rupture of cysts |
