Canadian Food Inspection Agency
www.inspection.gc.ca
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Home > Food > Consumer Centre > Food Safety Tips > Causes of Food Borne Illness
Symptoms
- Severe stomach cramps
- Diarrhea (often bloody)
- Vomiting
- Nausea
- Headache
- Little or no fever
Start of symptoms / how long they last
Symptoms usually
- start within 3 to 4 days but can occur up to 10 days later
- last from 5 to 10 days
How you can get sick
- By eating or drinking
- food or beverages contaminated with E. Coli O157:H7
- unpasteurized (raw) milk and (raw) milk products
- untreated water
- Through contact with:
- cattle or other farm animals
- the feces of infected people
- Through cross-contamination between raw meat and other food when you are preparing food
- person or animal can carry the bacteria without showing symptoms of illness, and can spread it to foods, surfaces or other people.
Potential health impacts
- Up to 15 percent of children infected, and a much smaller proportion of adults, develop Hemolytic Uremic Syndrome (HUS). This is a type of kidney failure and blood disorder.
- Most people with HUS recover within a few weeks, but some suffer permanent kidney and other organ damage and complications, or may die.
Food commonly associated
- Beef, raw and undercooked, ground and whole cuts
- Unpasteurized apple juice or cider
- Unpasteurized (raw) milk and (raw) milk products, such as raw milk cheese
- Untreated drinking water
- Contaminated raw fruit and vegetables that are not cooked (including alfalfa and bean sprouts)
How to protect yourself
- Cook food to a safe internal temperature.
- Use a digital food thermometer to check the internal temperature of your food. Refer to the chart on page 5.
- Eat and drink only pasteurized apple juice, cider, milk and milk products.
- Wash your hands thoroughly before preparing or eating food.
- Wash your hands after contact with animals or their environments (at farms, petting zoos, and fairs).
- Drink water from a safe supply (treated or boiled water).
- Keep raw food away from other food while shopping, and while storing, preparing and serving foods.
Food Safety Tip
Leftovers again? Reheat leftovers only one time and to a safe internal temperature of 74ºC (165ºF). Throw away any uneaten leftovers after they have been reheated.
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