On a Trip to a Region of Asia Where Snails

question 57

Multiple Choice

On a trip to a region of Asia where snails commonly ingest trematode eggs,Rebecca refuses to eat escargot,cooked snails,offered by her roommate.Instead,Rebecca goes fishing because she feels it would be safer to eat fresh fish.Unfortunately,she undercooks the fish and develops a trematode infection.What is the most likely explanation for her infection?

• A) Free-swimming larvae released by snails in the water developed into a secondary form within the fish.
• B) The flesh of the fish she ate contained trematode eggs that developed into larvae within her intestine.
• C) Her fish dinner was most likely contaminated by fecal matter in the water because trematode transmission is through a fecal-oral route.
• D) There were dormant trematodes encysted within the flesh of the fish she ate.

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