Amebiasis Entamoeba histolytica Infection

(Entamoeba histolytica Infection)

Definition

a one-celled parasite called Entamoeba histolytica (ent-a-ME-ba his-to-LI-ti-ka).

From Center for Disease Control:

Who is at risk for amebiasis?

Although anyone can have this disease, it is most common in people who live in developing countries that have poor sanitary conditions. In the United States, amebiasis is most often found in immigrants from developing countries. It also is found in people who have traveled to developing countries and in people who live in institutions that have poor sanitary conditions. Men who have sex with men can become infected and can get sick from the infection, but they often do not get sick.

How can I become infected with E. histolytica?

	By putting anything into your mouth that has touched the stool of a person who is infected with E. histolytica.
	By swallowing something, such as water or food, that is contaminated with E. histolytica.
	By touching and bringing to your mouth cysts (eggs) picked up from surfaces that are contaminated with E. histolytica.

What are the symptoms of amebiasis?

On average, about one in 10 people who are infected with E. histolytica becomes sick from the infection. The symptoms often are quite mild and can include loose stools, stomach pain, and stomach cramping. Amebic dysentery is a severe form of amebiasis associated with stomach pain, bloody stools, and fever. Rarely, E. histolytica invades the liver and forms an abscess. Even less commonly, it spreads to other parts of the body, such as the lungs or brain.

If I swallowed E. histolytica, how quickly would I become sick?

Usually 1 to 4 weeks later but sometimes more quickly or more slowly.

What should I do if I think I have amebiasis?

See your health care provider.

How is amebiasis diagnosed?

General


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