Campylobacter jejuni

While the food we eat in Canada is among the safest in the world, sometimes it may carry bacteria that can make us sick, like Campylobacter jejuni.

What is Campylobacter jejuni?

Campylobacter jejuni (C. jejuni) bacteria are found naturally in the intestines of poultry, cattle, swine, rodents, wild birds and household pets like cats and dogs. The bacteria have also been found in untreated surface water (caused by fecal matter in the environment) and manure.

C. jejuni is the most common type of campylobacter bacteria involved in human illness. People who eat food contaminated by C. jejuni bacteria can become ill with campylobacteriosis. Like other foodborne illnesses, the symptoms of campylobacteriosis can feel like stomach flu, but they can also develop into serious illness with long-lasting effects.

How do people get sick?

Both animals and people can be carriers of C. jejuni bacteria. They can then spread the bacteria to foods, surfaces, other animals or people. Food and beverages can become contaminated when handled by an infected person, or from cross-contamination when raw foods or pets are handled improperly.

The most common way of getting campylobacteriosis is by eating contaminated foods. Common sources of C. jejuni bacteria include:

Exposure to C. jejuni bacteria is also associated with the development of:

What are the symptoms and treatment?

Did you know?

Intestinal illness can be caused by viruses, bacteria or parasites, and usually involves vomiting and diarrhea. People often call it the flu, though it is in no way related to the influenza virus, which causes respiratory illness.

People infected with C. jejuni bacteria can experience a wide range of symptoms. Some do not get sick at all, though they can still spread the infection to others. Others feel as though they have a bad case of the flu. A rare few become seriously ill and must be hospitalized.

Most people with campylobacteriosis develop the following symptoms two to five days after being infected (though symptoms can appear as late as one month after infection):

Fast fact

Campylobacteriosis affects children under five and young adults (15-29) more frequently than other age groups.

The illness can last up to ten days, and most people recover without treatment. As with any disease causing diarrhea or vomiting, people infected should drink plenty of liquids to replace lost body fluids and prevent dehydration. Although anyone can get campylobacteriosis, pregnant women, people with weakened immune systems, young children and older adults are most at risk for developing serious complications.

While long-term consequences are rare, a small number of people may get the following illnesses:

How do I avoid getting sick?

Food safety tip

When cooking a chicken or turkey, it is safest to cook the stuffing in a separate dish, to prevent cross-contamination and undercooking. For more on cooking poultry safely, see Poultry Safety.

Foods contaminated with C. jejuni look, smell and taste normal. The good news is, C. jejuni and many other harmful bacteria can be killed by cooking food properly.

These tips will help protect you and your family from C. jejuni:

Also, these safe food practices will reduce your risk of contracting campylobacteriosis and other foodborne illnesses.

Food safety tip

Pasteurization destroys C. jejuni and other harmful bacteria. Try using pasteurized egg products when preparing foods that traditionally contain raw eggs, like eggnog, mayonnaise, salad dressing, ice cream and mousses.

What does the Government do to protect me?

In Canada, several government organizations work together every day to keep your food safe:

For more information

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