Spectrum: Local Antimicrobial Stewardship, for Eastern Health

Serratia marcescens - Antibiogram Data

Gram Negative Organisms
% of Isolates Susceptible

Antibiogram
Gentamicin100%
n = 112
Antibiogram
Amikacin100%
n = 54
Antibiogram
Ciprofloxacin98%
n = 112
Antibiogram
Trimethoprim-Sulfamethoxazole98%
n = 112
Antibiogram
Levofloxacin98%
n = 59
Antibiogram
Meropenem91%
n = 112
Antibiogram
Ertapenem89%
n = 112
Antibiogram
Tobramycin84%
n = 112
Antibiogram
Imipenem72%
n = 54
Antibiogram
Amoxicillin-ClavulanateR
n = 112
Antibiogram
AmpicillinR
n = 112
Antibiogram
CefazolinR
n = 112
Antibiogram
CefiximeR
n = 59
Antibiogram
CeftazidimeR
n = 112
Antibiogram
CeftriaxoneR
n = 112
Antibiogram
CefuroximeR
n = 59
Antibiogram
CephalexinR
n = 54
Antibiogram
Piperacillin-TazobactamR
n = 112
Antibiogram
ColistinR
n = 54
Antibiogram
NitrofurantoinR
n = 75

Nitrofurantoin susceptibility is provided for URINARY isolates only.

Even if urinary isolate is susceptible to nitrofurantoin this drug should NOT be used if patient has positive blood cultures for the same organism.

Antibiogram
TetracyclineR
n = 110

Organisms susceptible to tetracycline are also susceptible to doxycycline.