Campylobacter jejuniandC. coli are well-established human gastrointestinal pathogens, but other Campylobacterspecies (so-called emerging species) have also been shown to infect both humans and animals. In this Review, Man highlights the clinical importance of these emerging bacteria in both gastrointestinal and extragastrointestinal disease and describes the epidemiology, pathogenesis and transmission of these organisms.
