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- Put something in your mouth that has touched the stool of an infected person.
- Swallow water or food that has been contaminated with the parasite.
- Touch cysts (eggs) from 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, or tropical or subtropical areas
- Living in institutions with poor sanitary conditions
- Household contact with infected person
- Having anal sexual intercourse
- 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
- 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.
- Reviewer: David Horn, MD
- Review Date: 02/2016
- Update Date: 06/16/2014