Staphylococcus aureus, methicillin resistant
Antibiotic |
% Susceptible 2010 |
% Susceptible 2012 |
% Susceptible 2014 |
% Susceptible 2016 |
% Susceptible 2018 |
Ampicillin | 0 |
0 | 0 | 0 | 0 |
Azithromycin | - |
- | - |
- | - |
Aztreonam | - |
- | - |
- | - |
Cefazolin | 0 |
0 | 0
0 |
0 |
|
Cefepime | - |
- | -
- |
- |
|
Ceftazidime | - |
- | - |
- | - |
Ceftriaxone | 0 |
0 | 0 |
0 | 0 |
Cefuroxime | - |
- | -
- |
- |
|
Ciprofloxacin | 21 |
20 | 22 |
19 | 18 |
Clarithromycin | - |
- | - |
- | - |
Clindamycin | 64 |
73 | 71 |
73 | 86 |
Doxycycline | 92 |
94 | 94 |
95 | 94 |
Erythromycin | 5 |
9 | 9 |
8 | 8 |
Gentamicin | - |
- | - |
- | - |
Imipenem | - |
- | - |
- | - |
Levofloxacin | 22 | 21 | 24 | 21 | 20 |
Meropenem | - | - | - | - | - |
Moxifloxacin | 80 | 78 | 76 | 81 | 81 |
Nitrofurantoin | 99& | 99& | 99& | 96& | 99& |
Oxacillin/Naf | 0 | 0 | 0 | 0 | 0 |
Penicillin | 0 | 0 | 0 | 0 | 0 |
Piperacillin | - | - | - | - | - |
Piperacillin/tazo | - | - | - | - | - |
Ticarcillin/Clav | - | - | - | - | - |
Tobramycin | - | - | - | - | - |
TMP/SMX | 97 | 98 | 98 | 98 | 100 |
Unasyn/Aug | 0 | 0 | 0 | 0 | 0 |
Vancomycin | 100 | 100 | 100 | 100 | 100 |
# Tested | 1334 | 1061 | 1203 | 936 | 775 |
Comments: 38% of Staphylococcus aureus isolates in 2018 were methicillin resistant (may include duplicates).
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
(+) = 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