February 22, 2018

Entamoeba histolytica can cause dysentery

Currently five types of protozoa are of concern: Entamoeba histolytica, Giardia lamblia, Cryptosporidium parvum, Naegleria and Acanthamoeba. Entamoeba histolytica is a microscopic endoparasitic of humans. It is chiefly found in the colon of large intestine.

Entamoeba histolytica, the cause of amoebic dysentery, is spread principally by fecal contamination of water, food, body parts and diverse objects: sexual partners make an epidemiological impact.

It can be transmitted by the poor personal hygiene of food handlers, contamination of ready-to-eat foods such as fruits or vegetables, from drinking water, and by insect vectors such as flies.

Entamoeba histolytica infection is widespread in subtopic areas. Infection begins when trophozoites of Entamoeba histolytica invade the colonic mucosa.

The majority of infected people do not display any pathology, and the parasite exists as a commensal, continuing to multiply and spread. Only a small fraction of the infected individuals show overt symptoms of amebiasis with invasion in the intestinal tissues or in some extraintestinal sites, such as liver.
Entamoeba histolytica can cause dysentery
at 6:50 PM
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