The giardia parasite is a very common intestinal parasite. Although anyone can pick up giardia parasites, some people are especially at risk:
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- Children. Giardia infection is far more common in children than it is in adults. Children are more likely to come in contact with feces, especially if they wear diapers, are toilet training or spend time in a child care center. People who live or work with small children are also at higher risk of developing giardia infection.
- People without access to safe drinking water. Giardiasis is rampant wherever sanitation is inadequate or water isn't safe to drink. You're at risk if you travel to places where giardiasis is common, especially if you aren't careful about what you eat and drink. The risk is greatest in rural or wilderness areas.
- People who have anal sex. Having anal sex without using a condom puts you at increased risk of giardia infection, as well as sexually transmitted diseases.
Wright SG. Protozoan infections of the gastrointestinal tract. Infectious Disease Clinics of North America. 2012;26:323.
- Giardia. Centers for Disease Control and Prevention. http://www.cdc.gov/parasites/giardia/. Accessed July 18, 2012.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=4. Accessed July 18, 2012.
- Leder K, et al. Epidemiology, clinical manifestations, and diagnosis of giardiasis. http://www.uptodate.com/index. Accessed July 18, 2012.
- McPhee SJ, et al. Current Medical Diagnosis & Treatment 2012. 51st ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=1. Accessed July 18, 2012.
- Munoz FM. Treatment and prevention of giardiasis. http://www.uptodate.com/index. Accessed July 18, 2012.