What body systems does Giardia affect?

Giardia primarily affects the gastrointestinal system, causing infections that lead to symptoms such as diarrhea, abdominal cramps, and nausea. It can disrupt the normal function of the intestines, leading to malabsorption of nutrients. Although its primary impact is on the digestive system, severe cases can potentially affect the overall health and immune system due to prolonged nutrient deficiencies.