Campylobacter causes an estimated 1.3 million illnesses each year in the United States.
Most illnesses likely occur due to eating raw or undercooked poultry, or to eating something that touched it. Some are due to contaminated water, contact with animals, or drinking raw (unpasteurized) milk.
Although people with Campylobacter infection usually recover on their own, some need medical treatment.
CDC estimates Campylobacter is the #1 cause of bacterial diarrheal illness in the United States. It is also the #1 intestinal disease diagnosed in travelers returning to the United States.
Campylobacter infection is the most commonly identified cause of Guillan-Barré syndrome.