Cryptosporidium occurs in the feces of infected animals or humans. It is environmentally resistant and may survive outside the body for long periods of time. To become infected, a person must consume contaminated food or water. Diarrhea, abdominal cramps, headaches, nausea, vomiting, and a low-grade fever. These symptoms can last for weeks and may lead to weight loss and dehydration.
Symptoms are more severe for people with weakened immune systems and can lead to death.
Those on chemotherapy, organ or bone marrow recipients, persons with HIV or AIDS, malnourished children, the very young and the very old. From 2 to 12 days after ingestion. The average is seven days. A person can be infected by consuming contaminated water or food. If you think you have cryptosporidosis, see a health care provider, especially if you have a weakened immune system.