Campylobacter Enteritis.

Campylobacter jejuni (previously called "related vibrio") has recently become recognized as an important cause of acute diarrhoeal disease in many countries. As with other intestinal pathogens, the clinical picture of C. jejuni infection varies from symptomless excretion to severe disease. The incubation period averages two to five days. Fever, abdominal pain and bloody diarrhoea are the usual symptoms of campylobacter enteritis. Although it is normally a self-limiting disease, complications such as cholecystitis, peritonitis, septicaemia and meningitis occasionally arise. The small intestine is thought to be the main site of infection, but the colon is also regularly involved. The disease might be more accurately described as an enterocolitis. Campylobacters, like salmonellae and yersiniae, are thought to be pathogenic by virtue of their invasive ability. Chemotherapy is usually effective. Erythromycin is commonly used for patients ill enough to require specific treatment. Although the infection can be transmitted from person to person, it is mainly a zoonosis with many possible routes of infection. Poultry is a potential source of infection, dogs may also transmit the disease and there have been major outbreaks of campylobacter enteritis from the consumption of untreated or inadequately treated milk and water. Further epidemiological work is hampered by the lack of suitable typing techniques.