ESBLs	extended-spectrum beta-lactamases
E. coli	Escherichia coli
MALDI-TOF MS	Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry
WGS	whole-genome sequencing
ANI	average nucleotide identity
dDDH	digital DNA-DNA hybridization
MLSA	multilocus sequence analysis
EPSs	extracellular polymeric substances
LPS	lipopolysaccharide
TLR4	toll-like receptor 4
T6SS	type VI secretion system
Fur	ferric uptake regulator
PMQR	plasmid-mediated quinolone resistance genes
HGT	horizontal gene transfer
MDR	multidrug-resistant
CNS	central nervous system
CFC	Citrobacter freundii complex
UTI	Urinary tract infection
dDDH	Digital deoxyribonucleic acid–deoxyribonucleic acid hybridization
16S rRNA	16S ribosomal ribonucleic acid gene
eDNA	Extracellular deoxyribonucleic acid
O antigen	O-polysaccharide antigen
qnrB	Quinolone resistance gene family
IS26	Insertion sequence 26
ISEcp1	Insertion sequence associated with blaCTX-M mobilization
ICU	Intensive care unit
NLRP3	NLR family pyrin domain containing 3
cgMLST	Core genome multilocus sequence typing
wgMLST	Whole-genome multilocus sequence typing
blaNDM-1	Gene encoding New Delhi metallo-beta-lactamase 1