Staphylococcus aureus, methicillin sensitive    (2018 Data)

Antibiotic
% Susceptible
 
Antibiotic
% Susceptible
Ampicillin
-
  Imipenem
+
Azithromycin
+
  Levofloxacin
77
Aztreonam
-
  Meropenem
+
Cefazolin
100
  Moxifloxacin
96
Cefepime
+
  Nitrofurantoin
99&
Ceftazidime
+/-
  Oxacillin/Naf
100
Ceftriaxone
100
  Penicillin
0
Cefuroxime
+
  Piperacillin
-
Ciprofloxacin
76
  Piperacillin/tazo
+
Clarithromycin
+
  Ticarcillin/Clav
+
Clindamycin
86
  Tobramycin
+
Doxycycline
94
  TMP/SMX
100
Erythromycin
63
  Unasyn/Aug
100
Gentamicin
+
  Vancomycin
100
 
   

Number of isolates tested: 1241

Comments:   Fluoroquinolone use as first line agents against Staph aureus is discouraged.

For historical susceptibility data click here

Numeric data represent local susceptibility data.
(+) = usually effective or >60% susceptible; (+/-) = clinical trials lacking or 30-60% susceptible; (-) = not effective clinically or <30% susceptible - Adapted with permission from The Sanford Guide to Antimicrobial Therapy
(*) Local (non-Sanford Guide) opinion
(S) = synergistic with penicillin/ampicillin;
(&) nitrofurantoin only useful for lower tract urinary tract infections