Campylobacter is a type of bacteria commonly found in the intestines of birds and other animals. It is one of the leading causes of foodborne illness worldwide, often associated with undercooked poultry, unpasteurized milk, and contaminated water. Infection can lead to symptoms such as diarrhea, abdominal pain, fever, and nausea. The bacteria are typically transmitted to humans through the consumption of contaminated food or water. Proper cooking and food handling practices, such as washing hands and avoiding cross-contamination, can help prevent Campylobacter infections. Most people recover without treatment, but severe cases may require medical attention.