Biology 546
Human parasitology laboratory tutorial

The photograph on the left is from a fecal smear. The patient had periodic bouts of diarrhea. The larger of the two parasites averaged about 15 micrometers in length by 7 micrometers in width. What species is represented?

Chilomastix mesnili
Giardia lamblia
Pentatrichomonas hominis
Trichomonas vaginalis

Original; photograph by S. J. Upton

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Kansas State University | Biology Division