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Blastocystis
A species of parasitic protozoa found in the intestines of humans and other primates. It was classified as a yeast in 1912. Over the years, questions arose about this designation. In 1967, many physiological and morphological B. hominis characteristics were reported that fit a protozoan classification. Since that time, other papers have corroborated this work and the organism is now recognized as a protozoan parasite of humans causing intestinal disease with potentially disabling symptoms.
Source:
National Library of Medicine 2013 MeSH Scope Note and Classification
Images
Figure 1.
Blastocystis hominis
shown by chlorazol black staining of stool specimen.
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References
National Library of Medicine 2013 MeSH Scope Note and Classification
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