Many people who become infected exhibit no symptoms at all. However, the most profound symptom of cryptosporidiosis is frequent watery diarrhea. Other symptoms include:
- Abdominal cramping
- Low-grade fever
Symptoms often come and go. They tend to last about 30 days or less in people with normal immune systems. Unfortunately, in people with impaired immune systems like HIV/AIDS patients, the parasite cannot be cleared from the body. In these cases, the disease may be prolonged and even lead to death.