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Blastocystis is a genus of single-celled parasites belonging to the Stramenopiles that includes algae, diatoms, and water molds.There are several species, living in the gastrointestinal tracts of species as diverse as humans, farm animals, birds, rodents, reptiles, amphibians, fish, and cockroaches. [2]
Blastocystis hominis is a single-celled eukaryotic organism that inhabits the gastrointestinal tract of humans and various animals. [1] This stramenopile exhibits significant genetic diversity and has become an organism of increasing scientific interest due to its widespread distribution and controversial role in human health. [ 2 ]
Researchers have published conflicting reports concerning whether Blastocystis causes symptoms in humans, with one of the earliest reports in 1916. [2] The incidence of reports associated with symptoms began to increase in 1984, [3] with physicians from Saudi Arabia reporting symptoms in humans [4] and US physicians reporting symptoms in individuals with travel to less developed countries. [5]
Main article: Human parasite Endoparasites Protozoan organisms Common name of organism or disease Latin name (sorted) Body parts affected Diagnostic specimen Prevalence Source/Transmission (Reservoir/Vector) Granulomatous amoebic encephalitis and Acanthamoeba keratitis (eye infection) Acanthamoeba spp. eye, brain, skin culture worldwide contact lenses cleaned with contaminated tap water ...
Entamoeba coli is a non-pathogenic species of Entamoeba that frequently exists as a commensal parasite in the human gastrointestinal tract. E. coli (not to be confused with the bacterium Escherichia coli) is important in medicine because it can be confused during microscopic examination of stained stool specimens with the pathogenic Entamoeba histolytica. [1]
Melarsoprol (for treatment of sleeping sickness caused by Trypanosoma brucei) Eflornithine (for sleeping sickness) Metronidazole (for vaginitis caused by Trichomonas) Tinidazole (for intestinal infections caused by Giardia lamblia) Miltefosine (for the treatment of visceral and cutaneous leishmaniasis, currently undergoing investigation for ...
People become infected by swallowing the mature parasite; this normally occurs through the ingestion of contaminated food or water. The infected host then produces an immature form of the parasite in their feces, and when the parasite matures, it is capable of infecting its next host, via food or water containing the parasite. [citation needed]
The name was later changed to Filaria sanguinis hominis perstans, and later again shortened to Filaria perstans to comply with the binary system of nomenclature. Over time, the name continued to change as changes in the generic status of the parasite took place.