Cryptosporidium is a parasite. This is a living thing (organism) that lives in, or on, another organism. It can infect your bowels (intestines) and cause cryptosporidiosis. This is a form of bowel infection called gastroenteritis, which leads to diarrhoea and being sick (vomiting). Infection can occur in humans and animals and is spread by contact … Continue reading Cryptosporidium