Canadian Food Inspection Agency
www.inspection.gc.ca
Food >
Consumer Centre > Causes of Food Borne Illness
PDF (483 kb)
Symptoms
- Fever
- Chills
- Headache (with a sudden onset)
- Stomach cramps
- Diarrhea
- Nausea
- Vomiting (sometimes)
Start of symptoms / how long they last
Symptoms usually
- start within 6 to 72 hours after eating or drinking food containing the bacteria
- last 4 to 7 days
Sometimes symptoms last up to 8 weeks.
How you can get sick
- By eating or drinking food or beverages contaminated with Salmonella
- Through cross-contamination between raw meat and other food when you are preparing
food
- From hands that were not washed properly after using the washroom and before handling
food
- From hands that were not washed properly after petting infected animals (such as
cats, reptiles, turtles and birds) whose bodies could be covered in feces that are
carrying an infection
- From hands that were not washed properly after handling, animal feces, pets, pet
turtles, pet rodents, pet food, pet toys and pet treats
Potential health impacts
- Most people recover without treatment. However, in some people, symptoms can be
severe and can cause dehydration, which may lead to hospitalization.
- In the case of severe illness, complications such as abscesses (a sore that is
infected and filled with pus) and pneumonia can occur. Complications can sometimes cause
death unless treated with the appropriate antibiotics. The young, adults 60 years and
older and those with weakened immune systems are more likely to have severe illness.
- Some people may get
- Reiter's syndrome (a condition that develops in response to an infection in
another part of the body. It can last for months or years and may lead to chronic
arthritis).
- colitis (inflammation of the colon).
Food commonly associated
- Raw or undercooked meat, poultry, eggs and milk
- Unpasteurized dairy products, such as raw milk and raw cheese, and cream-filled
desserts and toppings
- Raw fruit and vegetables (especially sprouts and cantaloupes) and their juices
- Homemade products such as salad dressings, hollandaise sauce, mayonnaise, ice cream,
cookie dough, tiramisu, and frostings
How to protect yourself
- Cook food, including meat, poultry and eggs, to a safe internal temperature.
- Drink and eat pasteurized milk and milk products.
- Use a digital food thermometer to check the internal temperature of your food. Refer
to the chart on page 5.
- Consume only pasteurized juice, cider, milk and milk products.
- Wash fresh fruit and vegetables thoroughly.
- Keep cooked food separate from raw food during storage and preparation.
- Wash your hands thoroughly after contact with animal feces, pets, pet turtles, pet
rodents, pet food, pet toys and pet treats.
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