ampylobacteriosis is a food- and water-borne zoonotic diarrheal illness caused by bacteria of the genus Campylobacter, with most cases caused by C. jejuni. Campylobacter species have a worldwide distribution, and campylobacteriosis is a leading cause of acute diarrhea and enterocolitis throughout the world. In the United States, approxi- mately 1 million symptomatic Campylobacter infections occur each year.1 The majority of Campylobacter infec- tions are acquired via the oral route after handling raw poultry or consuming undercooked poultry.