1. The principle symptom in cases of cryptosporidiosis is diarrhea, and dehydration is possible.
2. Cases of amoebiasis may be complicated by passage of the protozoa to the blood stream and localization in the liver and lungs.
3. The symptoms of toxoplasmosis often resemble those in infectious mononucleosis, with swelling of the lymph nodes, anorexia and a high lymphocyte count.