Article: What You Need to Know About E. Coli
What is Escherichia Coli O157:H7?
Escherichia coli, commonly known as E. coli, live in the intestines of humans and other animals. Along with other bacteria, E. coli help to maintain a proper balance of normal intestinal flora. They also produce the vitamins we need to live. Hundreds of strains of Escherichia coli exist; most of them are harmless. E. coli O157:H7, a food borne bacteria found in food or water, is different because it produces a toxin powerful enough to damage the intestinal wall, cause severe illness, and death. Statistics released in 1999 from the Centers for Disease Control and Prevention (CDC), showed that at least 73,000 cases of infection are reported in the United States each year, along with more than 60 deaths. (The combination of letters and numbers in the name refers to the specific markers found on its surface.)
E. Coli O157:H7 Symptoms include:
Symptoms typically occur within two to four days after ingesting contaminated food or water, but can take as long as eight days. Most people recover from the infection within five to ten days after onset. E. coli infection can be a much more serious illness for the elderly, immune-weakened people, and young children. Because hemolytic uremic syndrome (HUS) is a real possibility when infected with E. coli, you should look for paleness of skin, fatigue, decrease in urination, and swelling in the face, hands, and feet. HUS destroys red blood cells and causes kidneys to fail. Very young children and the elderly are at especially high risk and should be closely monitored for the disease even after diarrhea has stopped. HUS is the most common cause of acute kidney failure in children. Most cases of hemolytic uremic syndrome are caused by E. coli.
How is E. Coli O157:H7 Infection Diagnosed?
Infection with E. coli O157:H7 is diagnosed by checking for the bacterium in the stool. Anyone who suddenly has diarrhea with blood should have a stool test for E. coli. A further test will identify the genetic fingerprint of the strain.
What is the Treatment for an E. Coli O157:H7 Infection?
Most people recover from an E. coli infection within five to ten days. Diarrhea causes the body to lose important fluids, so keeping hydrated is very important. Since there is no evidence that they work against this infection, antibiotics should not be taken. In fact, taking antibiotics during a bout of E. coli may lead to kidney complications or severe shock. Anti-diarrheal medicines should also be avoided. Children under the age of five and the elderly are at much greater risk of developing severe illness from an E. coli infection. If hemolytic uremic syndrome (HUS) is contracted, this life-threatening condition will require time in an intensive care unit. Often kidney dialysis and blood transfusions are needed.
Are There Any Long-term Consequences of an E. Coli O157:H7 Infection?
If a person infected with E. coli does not develop hemolytic uremic syndrome (HUS), there are no long-term consequences. For HUS sufferers, though, the outcome can be complicated. A small percentage may need to have parts of their bowel removed, experience paralysis, develop blindness, and persistent kidney failure. Many with HUS will enjoy better recovery, but may experience kidney abnormalities for years. HUS can be fatal. The established death rate for HUS is 3-5 percent, although some physicians believe the rate is much higher, perhaps as high as 5-15 percent.
What to Watch Out For
For years, when people heard E. coli, they automatically thought of ground beef and undercooked hamburgers. After the dangerous E. coli outbreaks in spinach last year, that has changed. Still, many people don’t know that lettuce is one the most common foods associated with E. coli infections. Contaminated sprouts, roast beef, processed turkey and ham, and salami, along with unpasteurized milk, juice, and apple cider round out the ‘food sources’ that pose a high risk for carrying strains of E. coli bacteria. Unpasteurized cheeses, raw vegetables grown in manure, and drinking contaminated water also increase the likelihood of E. coli infection, and swimming in water contaminated with E. coli makes the list as well. A warning to travelers: E. coli infection is more common in developing countries where sanitation is poor; the infection then is often referred to as “traveler's diarrhea.”
Important Tips About E. Coli O157:H7
E. Coli O157:H7 in the News
Should I File a Lawsuit If I Come Down With E. Coli?
Not always. See our article on food poisoning lawsuits.
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