Campylobacteriosis is among the most common bacterial infections of humans. It produces an inflammatory, sometimes bloody, diarrhea or dysentery syndrome. It is responsible for proctocolitis in participants of anoreceptive intercourse, bacteremia in AIDS patients and other immunocompromised patients, and travelers’ diarrhea. Helicobacter pylori is closely related to Campylobacter and causes peptic ulcer disease. The campylobacter organisms can cause a variety of infections manifesting as systemic, abortion, stillbirth, and oral (periodontitis) and intestinal.