Young children and older adults have a greater risk of developing a life-threatening form of kidney failure. Signs and symptoms of E. But you may become ill as soon as one day after exposure to more than a week later. Signs and symptoms include:. Only a few strains of E. The E. This can cause bloody diarrhea.
You develop an E. Unlike many other disease-causing bacteria, E. Because of this, you can be sickened by E. The most common way to get an E. Human and animal stool may pollute ground and surface water, including streams, rivers, lakes and water used to irrigate crops.
Although public water systems use chlorine, ultraviolet light or ozone to kill E. Private water wells are a greater cause for concern because many don't have a way to disinfect water.
Rural water supplies are the most likely to be contaminated. Some people also have been infected with E. Family members of young children with E. Outbreaks have also occurred among children visiting petting zoos and in animal barns at county fairs. Prevent cross-contamination by thoroughly washing hands, counters, cutting boards, and utensils with soap and water after they touch raw meat. Drink pasteurized milk and juices. Wash your hands often.
Running water and soap are best. Eat and drink safely. Keep food and drinks out of animal areas. Always supervise children around animals. More Information. Reports of Selected E. Food Safety Features. Get Email Updates. What's this? Links with this icon indicate that you are leaving the CDC website. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
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Person-to-person contact : Good hand hygiene is important in stopping the spread of infection. People with a weakened immune system are more prone to complications. This includes patients with AIDS , those taking immunosuppressive medications, and people receiving chemotherapy. Patients with decreased stomach acid , either due to stomach surgery or medicines that lower stomach acid, have a higher risk of infection. Young children and older people have a higher risk of developing serious illness and complications.
However, around 10 percent of people are at risk of developing hemolytic uremic syndrome HUS. These are mostly young children and older people. HUS is characterized by hemolysis, or a breakup of red blood cells. This can cause anemia , a low platelet count, and kidney failure.
Platelets, the blood cells responsible for blood clotting, clump together within the small blood vessels of the kidneys, resulting in reduced blood flow, or ischemia. This can eventually lead to kidney failure. Decreased platelets increase the risk of bleeding problems. Patients with these clots can also develop central nervous system CNS problems that affect the brain and spinal cord. This can lead to seizures, paralysis, brain swelling, and coma. It is fatal in 3 to 5 percent of cases.
HUS usually starts about 5 to 8 days after the onset of diarrhea. It is a medical emergency, and requires hospital treatment. The doctor will identify the signs, ask about symptoms, and send a stool sample to a lab for analysis. The sample must be taken within 48 hours after the bloody diarrhea starts.
Good hand hygiene involves washing hands thoroughly with warm water and soap regularly, and especially after using the bathroom, after changing diapers, before and after preparing foods, and after touching animals.
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