Intestinal Amebaecontinued Clinical Microbiology Review 238
AMEBA NUCLEUS TROPH CYST PATHOGENICITY OTHER
Blastocystis
hominis
All amebae are transmitted by ingestion of fecally contaminated food or water.
Should be
quantitated.
Formerly clas-
sified as yeast;
now considered
an ameba.
Up to 4,
pushed to
the side.
Round. 6–40 μm. Large central
body.
Uncertain.
(From Leventhal R, Cheadle RF.
Medical Parasitology: A Self-
Instructional Text, 5th ed.
Philadelphia: FA Davis; 2002:95.)
None