About parasites | Parasites | CDC

About parasites | Parasites | CDC

Protozoa Protozoa are microscopic single-celled organisms that can be free-living or parasitic in nature. They are able to multiply in humans, which contributes to their survival and also allows serious infections to develop from just a single organism. Transmission...
Irritable bowel syndrome

Irritable bowel syndrome

Irritable bowel syndrome, or IBS, is a chronic or recurring series of gastrointestinal symptoms that often cause distress to those who have it. IBS is associated with a group of symptoms that affect the colon and small intestine. It is estimated that IBS affects...