Cryptosporidiosis causes

Transmission
Infection is through contaminated material such as earth, water, uncooked or cross-contaminated food that has been in contact with the feces of an infected individual or animal. Contact must then be transferred to the mouth and swallowed. It is especially prevalent amongst those in regular contact with bodies of fresh water whether through work or recreation.The source can be recreational water like swimming pools, contaminated water supplies, or contaminated food. The high resistance of Cryptosporidium oocysts to disinfectants like chlorine bleach facilitates transmission of the disease. Some outbreaks have happened in day care related to diaper changes.