Infection of Ascaris usually occurs by:
Correct answer: C. Drinking water containing eggs of Ascaris
- A. Tsetse fly
- B. Mosquito bite
- C. Drinking water containing eggs of Ascaris
- D. Eating imperfectly cooked pork
Explanation
Man acquires infection of Ascaris by directly ingesting Ascaris eggs, containing the infective second-stage larva, with contaminated food or water. The life cycle of Ascaris is monogenetic. There is no vector or intermediate host. Infection with Ascaris, a type of parasitic roundworm, typically occurs through the ingestion of Ascaris eggs.
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