Entamoeba Histolytica

WHAT IS IT?

Entamoeba histolytica is a protist.

Visual appearance of Entamoeba histolytica trophozoite. Note that this organism contains 1 nuclei and multiple red blood cells in it's cytoplasm (source)
Visual appearance of Entamoeba histolytica trophozoite. Note that this organism contains 1 nuclei and multiple red blood cells in it’s cytoplasm (source)

It can exist in either a trophozoite or cystic form.

Entamoeba histolytica cyst containing 4 nuclei (source)
Entamoeba histolytica cyst containing 4 nuclei (source)
TRANSMISSION

Fecal-oral route: contaminated water sources are the means of transmission of this protist. Cysts can be ingested in this manner.

CONDITIONS CAUSED

Amebiasis that is characterized by dysentery (bloody diarrhea), liver abscesses

TREATMENT

Metronidazole is often the treatment of choice.

Iodoquinol can be used for asymptomatic cyst passers.

OTHER HY FACTS
Page Updated: 06.25.2016