Changes in antimicrobial resistance among Salmonella enterica Serovar typhimurium isolates from humans and cattle in the Northwestern United States, 1982-1997.
We compared antimicrobial resistance patterns of Salmonella enterica serovar Typhimurium (ST) of isolates from humans (n = 715) and cattle (n = 378) in the Pacific Northwest from 1982 through 1997. The major changes in antimicrobial resistance can be attributed to the widespread clonal dissemination of multidrug-resistant definitive phage type 104 ST.
Davis
M A
MA
Department of Veterinary Clinical Sciences, Washington State University, Pullman, WA 99164-6610, USA.
Hancock
D D
DD
Besser
T E
TE
Rice
D H
DH
Gay
J M
JM
Gay
C
C
Gearhart
L
L
DiGiacomo
R
R
D000818:Animals; D002417:Cattle / Q000382:microbiology; D018432:Drug Resistance, Multiple; D006801:Humans; D008826:Microbial Sensitivity Tests; D015205:Northwestern United States; D012486:Salmonella typhimurium / Q000187:drug effects* / Q000302:isolation & purification*; D013045:Species Specificity