Figure 7. Effects of Salmonella control programs as indicated by incidence of human infection attributable to the different major sources of human salmonellosis in Denmark; 1) Salmonella control program for broiler chickens implemented, 2) Salmonella control program implemented for pigs and pork, 3) Salmonella control program implemented for layer hens and eggs The three sources account for approximately 50% to 75% of Salmonella each year. Remaining cases are attributable to beef, imported food products, infections acquired while traveling abroad, and unknown sources. Incidence (cases/100.000 inhabitants).
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