AK	Amikacin
AM	Ampicillin
AMC	Amoxicillin/clavulanic acid
ARCSA	National Agency for Health Regulation, Control, and Surveillance
ATM	Aztreonam
CAZ	Ceftazidime
CE	Outpatient clinic
CIP	Ciprofloxacin
CLSI	Clinical and Laboratory Standards Institute
CN	Gentamicin
CTX	Cefotaxime
ESBL	Extended-spectrum β-lactamases
FEP	Cefepime
FT-IR	Fourier transform infrared spectroscopy
H	Hospitalization
HGIA	Isidro Ayora General Hospital
ICU	Intensive Care Unit
MDR	Multidrug-resistant microorganisms
MLST	Multilocus Sequence Typing
n	Number of isolates
PFGE	Pulsed-Field Gel Electrophoresis
TZP	Piperacillin/tazobactam
WGS	Whole-genome sequencing