Emerging Infectious Disease ISSN: 1080-6059

Tandem Repeat Analysis for Surveillance of Human Salmonella Typhimurium Infections

Mia Torpdahl*

, Gitte Sørensen†, Bjørn-Arne Lindstedt‡, and Eva Møller Nielsen*

Author affiliations: *Statens Serum Institut, Copenhagen, Denmark; †Danish Veterinary and Food Research, Copenhagen, Denmark; ‡Norwegian Institute of Public Health, Oslo, Norway;

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Figure 1

Pulsed-field gel electrophoresis (PFGE), multiple-locus variable-number tandem-repeat analysis (MLVA), phage types, and number of isolates. *PFGE patterns were sorted using the Pearson correlation in BioNumerics 4.0. †Types are shown when present 6× and when >4 isolates had identical MLVA type within each PFGE type. ‡Phage types are only shown when <2 isolates within each MLVA type had the same phage type.

Figure 1. Pulsed-field gel electrophoresis (PFGE), multiple-locus variable-number tandem-repeat analysis (MLVA), phage types, and number of isolates. *PFGE patterns were sorted using the Pearson correlation in BioNumerics 4.0. †Types are shown when present 6× and when >4 isolates had identical MLVA type within each PFGE type. ‡Phage types are only shown when <2 isolates within each MLVA type had the same phage type.

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