Infections are often associated with the following:
- International travel
- Undercooked poultry
- Raw (unpasteurized) milk
- Untreated water
- Contact with farm animals
- i.e. cows, chickens and other animals
It takes very few Campylobacter bacteria to make someone sick. A single drop of juice from raw chicken can contain enough bacteria to infect someone.
Most people get sick with Campylobacter by eating raw or undercooked poultry or eating or drinking something contaminated with it. Campylobacter are also spread through other foods, such as seafood, meat, and produce. People can also be infected by contact with animals and by drinking untreated water. Campylobacter does not usually spread from one person to another.
Campylobacter may also be found in the poop of some pets, especially those with diarrhea. Historically, people can become infected if they do not wash their hands after contact with these pets. People have historically gotten sick with Campylobacter from contact with puppies and kittens.