Greek: blastos = bladder; kystis = cyst; Latin: homo = human.
Worldwide; up to 20 % prevalence rates in healthy people, extremely high rates in AIDS patients (up to 50 %).
Blastocystis was first thought to be a fungus (nonpathogenic yeast), but it is now recognized as parasitic protozoan organism inhabiting the cecum and large intestine of humans and animals. Morphology of Blastocystis isolates has been extensively elucidated by light microscopy using the samples from fresh fecal materials and axenic or xenic cultures of human and animal isolates. Blastocystisis strictly an anaerobic eukaryotic unicellular organism, because the cells are quickly degenerated when they are exposed to the air. The most typical feature of this organism is its polymorphic appearance, including a great variation in cell size and distribution of granules in the large central vacuole and occurrence of polymorphic morphological shapes from...
KeywordsFecal Sample Central Vacuole Granular Form Fresh Fecal Sample Large Central Vacuole
- Mehlhorn H, Tan KSW, Yoshikawa H (2013) Blastocystis: pathogen or passenger? An evaluation of 101 years of research. Parasitology research monographs 4. Springer, Heidelberg/New YorkGoogle Scholar