Giardia - Information for Patients
What kind of infection is it?
Giardia is a single celled parasite.
How do people get infected?
- Giardia causes illness when a person swallows Giardia from water contaminated with the stool (poop) of a person or animal with Giardia.
- Swallowing contaminated water while swimming in lakes, rivers or ponds can cause Giardia.
- Giardia can also be picked up from surfaces contaminated with Giardia, such as changing tables, diaper pails or toilets.
- Giardia can spread in child care centers.
- Giardia can be spread from an ill person through poor hygiene or sexual contact.
What are the usual symptoms?
- Nausea, loss of appetite, gas, bloating, diarrhea, greasy floating stools.
How long does it last?
- Without treatment symptoms can last from a few days to months.
How is it treated?
- Prevent and treat dehydration. Warning signs of dehydration include dry mouth, decreased urination, or dizziness.
- A number of prescription drugs can be used to treat Giardia. Take any medication you are prescribed as directed.
Are there possible complications?
- Dehydration can occur.
- Prolonged Giardia can lead to significant weight loss or slow growth in children.
Comments:
- Wash hands carefully after using the bathroom, changing diapers and before and after cooking.
- To prevent Giardia, avoid drinking untreated water from rivers, streams, lakes or other surface waters.
- Avoid swallowing water when swimming.