Giardia: A Common Cause of Diarrhea

Course overview

Giardia is a protozoan parasite that lives in water and can be transmitted via contaminated water, food, or fecal matter. In addition to being the most frequent cause of parasitic diarrheal disease in the United States, Giardia is common around the world. It typically presents as a mild disease, which can be managed in an outpatient setting. Giardia is often easily treated or self-limiting, and there are steps people can take to reduce their risk of acquiring it. Avoiding common sources, such as unfiltered water in developing countries or contaminated fecal matter, is important. Being aware of the risks and how to avoid disease is key for prevention.