Which helminth produces an elongate, barrel-shaped egg with colorless polar plugs?

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Multiple Choice

Which helminth produces an elongate, barrel-shaped egg with colorless polar plugs?

Explanation:
Whipworm eggs have a distinctive barrel-like, elongated shape with clear colorless polar plugs at both ends. That combination—barrel shape plus plugs—is a classic, diagnostic feature of Trichuris trichiura. The other parasites produce different egg forms: Ascaris lumbricoides eggs are round to oval with a thick, mammillated shell; Hymenolepis nana eggs are small and spherical; Necator americanus eggs are thin-shelled and oval with a morula inside. So the described egg morphology points to Trichuris trichiura.

Whipworm eggs have a distinctive barrel-like, elongated shape with clear colorless polar plugs at both ends. That combination—barrel shape plus plugs—is a classic, diagnostic feature of Trichuris trichiura. The other parasites produce different egg forms: Ascaris lumbricoides eggs are round to oval with a thick, mammillated shell; Hymenolepis nana eggs are small and spherical; Necator americanus eggs are thin-shelled and oval with a morula inside. So the described egg morphology points to Trichuris trichiura.

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