Biology 546
Human parasitology laboratory tutorial

The photograph on the left was taken from a fecal smear of a child at a day care center in Manhattan, Kansas. The ellipsoidal cyst measures about 10 micrometers in length by 7-8 micrometers in width. Can you figure out why this child may have periodic bouts of diarrhea?

Chilomastix mesnili
Cyclospora cayetanensis
Giardia lamblia
Iodamoeba buetschli

Original; photograph by S. J. Upton

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Kansas State University | Biology Division