10 Questions
Which of the following statements is true about most types of Escherichia coli?
They are harmless or cause relatively brief diarrhea.
What can a few strains of Escherichia coli, such as E. coli O157:H7, cause?
Severe stomach cramps, bloody diarrhea, and vomiting
How might you be exposed to Escherichia coli?
From contaminated water or food
Where do Escherichia coli bacteria normally live in healthy people and animals?
In the intestines
How long do healthy adults usually take to recover from an infection with E. coli O157:H7?
Within a week
What type of bacteria is Escherichia coli (E. coli)?
Gram negative
Where do most types of E. coli normally live?
In the intestines
Which strain of E. coli can cause severe stomach cramps, bloody diarrhea, and vomiting?
E. coli O157:H7
How can E. coli be contracted?
Eating raw vegetables and undercooked ground beef
How long does it usually take for healthy adults to recover from infection with E. coli O157:H7?
Within a week
Study Notes
Escherichia coli (E. coli)
- A gram-negative bacteria that normally lives in the intestines of healthy people and animals.
- Most types of E. coli are harmless or cause relatively brief diarrhea.
Harmful Strains
- A few strains, such as E. coli O157:H7, can cause severe symptoms, including:
- Stomach cramps
- Bloody diarrhea
- Vomiting
Transmission
- Exposure to E. coli can occur through:
- Contaminated water
- Contaminated food, especially:
- Raw vegetables
- Undercooked ground beef
Prognosis
- Healthy adults usually recover from infection with E. coli O157:H7 within a week.
Learn about the bacterium Escherichia coli, its normal habitat, and the symptoms of its harmful strains. Understand how to get infected and how healthy adults can recover from it.
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