Clinical review of nontyphoid Salmonella infections from 1991 to 1999 in a Danish county.

To determine outcomes of nontyphoid Salmonella infections, we reviewed all 3328 cases of infection registered in a large Danish county from 1991 to 1999. The hospitalization rate was 27% among patients <5 years old, 22% among patients 5-59 years old, and 54% among patients > or =60 years old; complications were present in 7% and extraintestinal disease in 4% of patients. We conclude that nontyphoid Salmonella infections may frequently cause severe disease even among patients without predisposing conditions.