By: Allana Whisnant


Giardia is an Infectious Agent, which is an infection caused by viruses, bacteria, nematodes, arthropods, fungi, and other macroparasites.


Giardia can be found everywhere in the United States and around the world. It is located on surfaces or in soil, food, or water that has been contaminated by feces.

*the map below shows incidences of giardia in the U.S.*

Health Problems Caused

Giardia causes intense diarrhea, fatigue, abdominal cramps and bloating, nausea, and weight loss.


Giardia can be cured simply by small doses or antibiotics.