Isospora belli: A Hidden Intestinal Parasite
- Jul 13
- 3 min read
Updated: Jul 30
Isospora belli is a microscopic coccidian parasite that infects the intestinal lining of humans. Though relatively rare in industrialized nations, it can cause serious illness, especially in individuals with weakened immune systems, such as those with HIV/AIDS or undergoing chemotherapy. Found primarily in tropical and subtropical regions, this parasite is a significant concern in areas with poor sanitation and contaminated water supplies.
Cause and Transmission
Infection occurs when a person ingests food or water contaminated with feces containing Isospora belli oocysts. Once inside the host, the parasite invades the epithelial cells lining the small intestine, initiating its life cycle and leading to inflammation and damage.
