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- Title
Salmonella enterica serotype Typhimurium DT104 isolated from humans, United States, 1985, 1990, and 1995.
- Authors
Ribot, Efrain M; Wierzba, Rachel K; Angulo, Frederick J; Barrett, Timothy J
- Abstract
First isolated from an ill person in 1985, multidrug-resistant Salmonella enterica serotype Typhimurium DT104 emerged in the mid-1990s as a strain of Salmonella frequently isolated from humans in the United States. We compared the integron content, plasmid profile, and XbaI pulsed-field gel electrophoresis (PFGE) patterns of multidrug-resistant S. Typhimurium DT104 (MR-DT104) isolated from humans in the United States in 1985, 1990, and 1995. All isolates contained a 60-mDa plasmid and had indistinguishable PFGE and integron profiles, supporting the idea of a clonal relationship between recent and historical isolates. The data suggest that the widespread emergence of MR-DT104 in humans and animals in the 1990s may have been due to the dissemination of a strain already present in the United States rather than the introduction of a new strain.
- Publication
Emerging infectious diseases, 2002, Vol 8, Issue 4, p387
- ISSN
1080-6040
- Publication type
Journal Article
- DOI
10.3201/eid0804.010202