Occurrence: Worldwide.
Species affected: Chickens, turkeys, ducks, pigeons, game birds, quail, puffins, gulls and geese.
Age affected: All ages.
Causes: Microaerophile bacteria- Campylobacter jejuniC. coli and C. lardis.
Effects: Distension (enlargement) of the intestinal tract, depression, soiled vent, diarrhoea.
Special note: Humans are very susceptible to the organism. Food-borne contamination of uncooked poultry is a significant problem. Up to 2 million cases of enteritis a year may be due to this bacteria.