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- Put something in your mouth that has touched the stool of a person infected with E. histolytica
- Swallow water or food that has been contaminated with E. histolytica
- Touch cysts (eggs) from E. histolytica—contaminated surfaces and bring them to your mouth
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- Living in or traveling to developing countries, places that have poor sanitary conditions, tropical, or subtropical areas
- Living in institutions with poor sanitary conditions
- Having anal sexual intercourse
- Household contact with infected person
- Loose /watery stools or constipation
- Bloody stools
- Constant feeling you need to move your bowels
- Weight loss
- Stomach pain
- Pain on your right, upper side (if you have the parasite in your liver)
- Blood tests
- Stool samples
- CT scan
- Drink only bottled water or water that has been boiled for at least one minute
- Do not eat fresh fruit or vegetables that you do not peel yourself
- Do not eat or drink unpasteurized milk, cheese, or dairy products
- Do not eat or drink anything sold by street vendors
- Wash your hands frequently with soap and water. Use hand sanitizers if soap and water are not available.
- People carrying the parasite may need to be treated to avoid spreading it to others.
Centers for Disease Control and Prevention http://www.cdc.gov
National Institute of Allergy and Infectious Diseases http://www.niaid.nih.gov
Health Canada http://www.hc-sc.gc.ca
Public Health Agency of Canada http://www.phac-aspc.gc.ca
Amebiasis (amoebic dysentery). New York State Department of Health website. Available at: http://www.health.state.ny.us/diseases/communicable/amebiasis/fact%5Fsheet.htm. Updated October 2011. Accessed August 7, 2013.
Amebiasis. EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated May 31, 2013. Accessed June 16, 2014.
Parasites–amebiasis. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/parasites/amebiasis/index.html. Updated November 2, 2010. Accessed August 7, 2013.
- Reviewer: Michael Woods, MD
- Review Date: 06/2014
- Update Date: 06/16/2014