That big, juicy burger looked delicious and itwas cooked just the way Jon liked — charred on the outside, pink in the middle. But a couple of days later, Jon found himself in the bathroom with a bad case of diarrhea. That yummy burger, unfortunately, came with a side of E. coli bacteria.
Infections due to Escherichia coli (E. coli) bacteria can cause severe, bloody diarrhea. Some cases can lead to serious health problems. Fortunately, most healthy people who get the infection don't develop serious problems and recover on their own without needing treatment.
How It Spreads
Some strains of E. coli naturally live in our intestines and are usually harmless. Others, like E. coli O157:H7, spread through contaminated food or water, or from other infected people or animals, and can cause problems.
Most often, E. coli is transmitted when someone eats food containing the bacteria. At-risk foods include:
• undercooked ground beef (such as in hamburgers that are pink inside)
• produce grown in manure from cows, sheep, goats, or deer
• produce washed in contaminated water
• unpasteurized dairy or juice products
The bacteria also can spread from person to person on unwashed hands and surfaces, by swimming in contaminated water, and from touching animals at farms or petting zoos.
Symptoms & Complications
Some types of E. coli bacteria make a toxin (a poisonous substance) that can damage the lining of the small intestine. This can lead to bad stomach cramps, vomiting, and diarrhea (often with blood in it). When that happens, people can get dehydrated.
Symptoms usually start 3-4 days after a person has come into contact with the bacteria and end within about a week. An infection is contagious for at least as long as the person has diarrhea, and sometimes longer.
Most people recover completely, although some develop a serious kidney and blood problem called hemolytic uremic syndrome(HUS). Signs of HUS include:
• decreased urination
• a pale or swollen appearance
• unexplained bruises
• bleeding from the nose or gums
• fatigue
• seizures
HUS can be life threatening and requires treatment in a hospital.
That big, juicy burger looked delicious and itwas cooked just the way Jon liked — charred on the outside, pink in the middle. But a couple of days later, Jon found himself in the bathroom with a bad case of diarrhea. That yummy burger, unfortunately, came with a side of E. coli bacteria.Infections due to Escherichia coli (E. coli) bacteria can cause severe, bloody diarrhea. Some cases can lead to serious health problems. Fortunately, most healthy people who get the infection don't develop serious problems and recover on their own without needing treatment.How It SpreadsSome strains of E. coli naturally live in our intestines and are usually harmless. Others, like E. coli O157:H7, spread through contaminated food or water, or from other infected people or animals, and can cause problems.Most often, E. coli is transmitted when someone eats food containing the bacteria. At-risk foods include:• undercooked ground beef (such as in hamburgers that are pink inside)• produce grown in manure from cows, sheep, goats, or deer• produce washed in contaminated water• unpasteurized dairy or juice productsThe bacteria also can spread from person to person on unwashed hands and surfaces, by swimming in contaminated water, and from touching animals at farms or petting zoos.Symptoms & ComplicationsSome types of E. coli bacteria make a toxin (a poisonous substance) that can damage the lining of the small intestine. This can lead to bad stomach cramps, vomiting, and diarrhea (often with blood in it). When that happens, people can get dehydrated.Symptoms usually start 3-4 days after a person has come into contact with the bacteria and end within about a week. An infection is contagious for at least as long as the person has diarrhea, and sometimes longer.
Most people recover completely, although some develop a serious kidney and blood problem called hemolytic uremic syndrome(HUS). Signs of HUS include:
• decreased urination
• a pale or swollen appearance
• unexplained bruises
• bleeding from the nose or gums
• fatigue
• seizures
HUS can be life threatening and requires treatment in a hospital.
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