Parasites That Affect Humans
- Sep 4, 2025
- 8 min read
Updated: 2 days ago

Parasites That Affect Humans, What They Are, How They Spread, Key Symptoms, And Prevention. A deep dive.
Important Notes Before We Begin Parasites are diverse. Some are single celled protozoa, and others are worms. A few items in the original list were bacteria or other organisms, not parasites. I have corrected those. Incidence numbers vary by country and over time. Where big numbers were cited without sources, I replaced them with cautious, accurate language.
Blood and Tissue Parasites



