Prevention of Giardia infection (giardiasis)

Learn how Giardia infection can be prevented.

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How to prevent Giardia infection

You can reduce your risk of becoming ill from Giardia infection if you:

Access to safe drinking water may be an issue for people who are:

In these cases, it is best to avoid swallowing untreated water.

Municipal water treatment authorities reduce the risk of Giardia infection in drinking water using treatment methods such as:

If there is a suspected or actual outbreak of Giardia related to drinking water, municipalities will generally issue a boil-water advisory. This is done to help control the spread of illness.

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