NCIt definition : A species of protozoan parasites in the family Blastocystidae. External transmission
of B. hominis is believed to occur by infection with a cyst. The cysts infect epithelial
cells of the digestive tract and multiply asexually.;
Alternative definition : CDISC: Any unicellular, eukaryotic organism that can be assigned to the species Blastocystis
hominis.;