Biology 546
Human parasitology laboratory tutorial

The worm on the left was passed in the stool of a 6 year old child. It measured 10 mm in length. What species does it represent?

Ascaris lumbricoides
Enterobius vermicularis
Necator americanus
Trichuris trichiura

Original. Photograph by S.J. Upton.

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Kansas State University | Biology Division