About E. coli

From the nation’s leading law firm representing victims of E. coli and other foodborne illness outbreaks.

About E. coli Blog

How may an E. coli O157: H7 infection be prevented?

Eating undercooked ground beef is the most important risk factor for acquiring E. coli O157:H7. Cook all ground beef and hamburger thoroughly. Because ground beef can turn brown before disease causing bacteria are killed, use a digital instant read meat thermometer to ensure thorough cooking. Ground beef should be cooked until a thermometer inserted into several parts of the patty, including the thickest part, reads at least 160 degrees F. Persons who cook ground beef without using a thermometer can decrease their risk of illness by not eating ground beef patties that are still pink in the middle. If you are served an undercooked hamburger or other ground beef product in a restaurant, send it back for further cooking.

    • Avoid spreading harmful bacteria in your kitchen. Keep raw meat separate from ready-to-eat foods. Wash hands, counters, and utensils with hot soapy water after they touch raw meat. Never place cooked hamburgers or ground beef on the unwashed plate that held raw patties.
    • Wash meat thermometers in between tests of patties that require further cooking.
    • Drink only pasteurized milk, juice, or cider. Commercial juice with an extended shelf life that is sold at room temperature (e.g. juice in cardboard boxes, vacuum-sealed juice in glass containers) has been pasteurized, although this is generally not indicated on the label. Most juice concentrates are also heated sufficiently to kill pathogens.

  • Wash fruits and vegetables thoroughly, especially those that will not be cooked. Children younger than 5 years of age, immunocompromised persons, and the elderly should avoid eating alfalfa sprouts until their safety can be assured. Methods to decontaminate alfalfa seeds and sprouts are being investigated.
  • Drink municipal water that has been treated with chlorine or other effective disinfectants, or bottled water that has be sterilized with ozone or reverse osmosis (almost all major brands use one or the other method).
  • Avoid swallowing lake or pool water while swimming, especially pool water in public swimming facilities.
  • Avoid Petting Zoos and other animal exhibits.
  • Make sure that persons with diarrhea, especially children, wash their hands carefully with soap after bowel movements to reduce the risk of spreading infection, and that persons wash hands after changing soiled diapers. Anyone with a diarrheal illness should avoid swimming in public pools or lakes, sharing baths with others, and preparing food for others.

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