Biology 546
Human parasitology laboratory tutorial

The egg on the left was found in the feces of a Manhattan, Kansas resident. A friend of yours sent you the fecal sample gratis (yes, this happens often when you are a parasitologist). The egg measured about 45 micrometers long x 40 micrometers wide. What species is represented?

Ascaris lumbricoides
Enterobius vermicularis
Schistosoma japonicum
Trichuris trichiura

Original; photograph by S.J. Upton

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