Emergence of multidrug-resistant Salmonella enterica serotype Newport in Minnesota.
We report a concurrent increase in the number of isolates of Salmonella enterica serotype Newport and the rate of multidrug resistance in S. Newport isolates from animal and human populations in Minnesota. Antimicrobial susceptibility and pulsed-field gel electrophoresis analysis demonstrated heterogeneity of isolates and showed that 1 pulsed-field gel electrophoresis cluster contained most of the multidrug-resistant isolates with a resistance pattern and most class 1 integron isolates, implying the clonal origin of the isolates.
Lopes
Vanessa C
VC
Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul 55108, USA.
Wedel
Stephanie D
SD
Bender
Jeffrey B
JB
Smith
Kirk E
KE
Leano
Fe T
FT
Boxrud
David J
DJ
Lauer
Dale C
DC
Velayudhan
Binu T
BT
Nagaraja
Kakambi V
KV
D000818:Animals; D015373:Bacterial Typing Techniques; D002417:Cattle; D021821:Communicable Diseases, Emerging / Q000453:epidemiology / Q000382:microbiology; D024901:Drug Resistance, Multiple, Bacterial / Q000235:genetics*; D016521:Electrophoresis, Gel, Pulsed-Field; D006801:Humans; D032023:Integrons; D008826:Microbial Sensitivity Tests; D008910:Minnesota / Q000453:epidemiology; D012480:Salmonella Infections / Q000382:microbiology*; D012481:Salmonella Infections, Animal / Q000382:microbiology*; D019779:Salmonella enterica / Q000145:classification* / Q000302:isolation & purification