What type of organism is Giardia?

Giardia is classified as a parasite, specifically a protozoan parasite, that can inhabit the small intestine of its host, causing giardiasis, which is an infection leading to gastrointestinal distress. This organism is a member of the group of single-celled organisms known as protozoa and is often transmitted through contaminated water or food. The presence of Giardia in the small intestine disrupts normal digestive processes, leading to symptoms such as diarrhea, abdominal pain, and nausea. Understanding its classification as a parasite is crucial for properly recognizing the routes of transmission, prevention methods, and treatment protocols relevant to giardiasis.