Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cryptosporidiosis, also known as crypto,is a parasitic disease caused by Cryptosporidium, a protozoan parasite. It affects the intestines and is typically an acute short-term infection. It is spread through the fecal-oral route, often through contaminated water. the main symptom is self-limiting diarrhea in people with intact immune systems. In immuno-compromised individuals, such as AIDS patients, the symptoms are particularly severe and often fatal. Learn more about Cryptosporidiosis, a foodborne parasitic disease, its symptoms and treatment in the following pages.