Question:easy
Visceral larva migrans is seen in:
Visceral larva migrans is seen in:
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The dog roundworm in which humans are accidental hosts.
Updated On: Jun 24, 2026
- Strongyloides stercoralis
- Ankylostoma duodenale
- Toxocara canis
- Ascaris lumbricoides
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The Correct Option is C
Solution and Explanation
Visceral larva migrans arises when larvae of nematodes whose natural host is an animal end up in a human, who is an unsuitable accidental host. Unable to complete their life cycle, the larvae wander through internal organs such as the liver, lungs and eye, producing eosinophilia and organ-specific damage. The agent classically responsible is Toxocara canis, the roundworm of dogs; children who ingest embryonated eggs from contaminated soil develop this syndrome. The other listed worms behave differently in humans: Strongyloides stercoralis and Ankylostoma duodenale enter through the skin and establish intestinal infection, and Ascaris lumbricoides is a true human parasite whose larvae undertake a normal pulmonary transit rather than causing aberrant visceral migration. Hence Toxocara canis is the correct choice.
\[\boxed{\text{Toxocara canis}}\]
\[\boxed{\text{Toxocara canis}}\]
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