Salmonella isolates were serotyped via the slide agglutination assay according to the instructions provided by the manufacturer of the
Salmonella antisera (Statens Serum Institute, Copenhagen, Denmark). The serovars of the isolates were determined using the Kauffmann-White scheme (Grimont and Weill, 2007 ).
Antimicrobial susceptibility testing of
Salmonella isolates was performed using the agar dilution method for
ampicillin,
ampicillin-sulbactam,
piperacillin,
piperacillin-tazobactam,
cefuroxime,
cefotetan,
ceftazidime,
ceftriaxone,
cefepime,
aztreonam,
imipenem,
amikacin,
gentamicin, and
tobramycin (Sigma, St. Louis, MO, United States).
Escherichia coli ATCC 25922 was used as a quality control strain in each run. The breakpoints for determining susceptibility or resistance to antimicrobials were determined by the guidelines of the Clinical Laboratory Standard Institute (CLSI, 2018 ).
Lyu N., Feng Y., Pan Y., Huang H., Liu Y., Xue C., Zhu B, & Hu Y. (2021). Genomic Characterization of Salmonella enterica Isolates From Retail Meat in Beijing, China. Frontiers in Microbiology, 12, 636332.