Campylobacter jejuni is the leading cause of bacterial enteritis in the world and this zoonotic disease is principally transmitted by food and water. Campylobacter infections are characterised by several symptoms such as watery/bloody diarrhea, abdominal pain, fever, headache, nausea and vomiting which may persist for few days. Medical treatment may be conventional, often symptomatic, sometimes associated with the use of antibiotics in some severe cases. This book discusses the epidemiology, clinical management and prevention of Campylobacter infections.