Relative incidence of campylobacteriosis by sex, region, and season, compared with rates of salmonellosis and cryptosporidiosis, among patients >60 years of age, England and Wales, 1991–2007. Northern, northwest, northeast, as well as Yorkshire and the Humber regions; mid-country, Wales, West Midlands, East Midlands, and East of England regions; southern, London as well as southeast and southwest regions. Salmonellosis includes nontyphoidal salmonellae, with age data available for 356,270 of 380,915 case-patients (94%); cryptosporidiosis includes age data for 76,462 of 79,808 case-patients (96%).