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People with Campylobacter infection usually have diarrhea (often bloody), fever, and abdominal cramps. Nausea and vomiting might also occur. Symptoms usually start within 2 to 5 days after exposure and last about a week. Some infected people do not have any symptoms. Although most persons with Campylobacter infection recover on their own, some need medical treatment.

You can get Campylobacter from eating raw or undercooked poultry, or eating something that touched raw or undercooked poultry. Sometimes people get Campylobacter from contaminated water, contact with infected pets, or drinking raw (unpasteurized) milk. It doesn't typically spread from one person to another.

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