The parasitic disease caused by larvae of two species of Toxocara roundworms is called what?

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Study for the Introduction to Parasitology Test. Use flashcards and multiple-choice questions, each question offers hints and explanations. Prepare for your exam thoroughly!

Multiple Choice

The parasitic disease caused by larvae of two species of Toxocara roundworms is called what?

Explanation:
Toxocariasis. This disease results from migrating larvae of Toxocara canis (dog roundworm) and Toxocara cati (cat roundworm) in humans, who are accidental hosts after ingesting embryonated eggs from soil contaminated with pet feces. The larvae can cause visceral larva migrans when they wander through organs like the liver and eyes, leading to fever, eosinophilia, hepatomegaly, and sometimes vision problems in the ocular form. The other options refer to different pathogens: toxoplasmosis is caused by a protozoan (Toxoplasma gondii); trichinellosis by Trichinella spiralis from undercooked meat; and ascariasis by Ascaris lumbricoides.

Toxocariasis. This disease results from migrating larvae of Toxocara canis (dog roundworm) and Toxocara cati (cat roundworm) in humans, who are accidental hosts after ingesting embryonated eggs from soil contaminated with pet feces. The larvae can cause visceral larva migrans when they wander through organs like the liver and eyes, leading to fever, eosinophilia, hepatomegaly, and sometimes vision problems in the ocular form. The other options refer to different pathogens: toxoplasmosis is caused by a protozoan (Toxoplasma gondii); trichinellosis by Trichinella spiralis from undercooked meat; and ascariasis by Ascaris lumbricoides.

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