What are the symptoms of e. Coli o157:h7 infections?

Diarrhea. Patients develop crampy diarrhea, which may become bloody, and a generalized illness and dehydration. In some people, there is shutdown of the kidneys, which may result in not urinating, and shutdown of the liver may cause yellowing of the skin.
Two categories. Common and mild: nausea, vomiting, cramps, and diarrhea (often is bloody) as well as mild fever. Severe with complications, but rare: anemia and dehydration due to severe bloody diarrhea, hemolytic-uremic syndrome (hus) which is anemia associated with kidney failure, also thrombotic thrombocytopenic purpura which is caused by loss of platelets (easy bruising with possible organ failure).
Bad cramps/diarrhea. Common symptoms are very bad stomach cramps, diarrhea (usually bloody), and sometimes a fever. Symptoms however can vary among people. Some may have very mild symptoms. Othertimes, it can be life-threatening.
Bloody diarrhea. The main symptoms are fever, diarrhea, blood in the stool and abdominal pain. It can be detected by stool tests and treated with antibiotics. It can also be fatal if not recognized.
Bloody diarrhea. This organism, one of the enterohemorrhagic e. Coli, begins with diarrhea which quickly becomes bloody with significant pain and no fever. Antimicrobial agents given during this period can result in a higher risk of hemolytic uremic syndrome that can result in kidney failure that may be permanent.