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Levofloxacin (Levaquin, Quixin)
Levofloxacin (Levaquin, Quixin)
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Microorganism
MIC50
(μg/ml)
MIC90
(μg/ml)
Range
(μg/ml)
Reference
Staphylococcus aureus
(methicillin-susceptible)
0.25
0.5
0.12 - 4
117
Staphylococcus aureus
(methicillin-susceptible)
0.25
0.5
0.12 - 16
120
Staphylococcus aureus
(methicillin-susceptible)
0.25
0.5
0.125 - 1
56
Staphylococcus aureus
(methicillin-susceptible)
0.25
0.5
≤0.25 - 2
371
Staphylococcus aureus
(methicillin-susceptible)
>0.25
>16
0.12 - >16
1279
Staphylococcus aureus
(methicillin-susceptible)
0.39
0.39
0.1 - 3.13
40
Staphylococcus aureus
(methicillin-susceptible)
0.5
0.5
0.25 - 16
19
Staphylococcus aureus
(methicillin-susceptible)
-
0.25
0.25 - 16
55
Staphylococcus aureus
(methicillin-susceptible)
-
0.25
? - ?
602
Staphylococcus aureus
(methicillin-susceptible)
-
0.5
? - ?
341
Staphylococcus aureus
(methicillin-susceptible)
-
16
? - ?
452
Staphylococcus aureus
(methicillin-susceptible)
-
-
0.25 - ?
268
Staphylococcus aureus
(methicillin-susceptible)
-
-
0.25 - ?
257
Staphylococcus aureus
(meticillin-resistant)
>4
>4
≤0.12 - >4
1130
Staphylococcus aureus
(meticillin-resistant)
16
>32
0.25 - >32
1598
Staphylococcus aureus
(meticillin-susceptible)
0.25
0.5
≤0.12 - >4
1130
Staphylococcus aureus
(meticillin-susceptible)
-
0.25
? - ?
1044
Staphylococcus aureus
(ML15009 + penicillin-resistant)
-
-
0.2 - ?
40
Staphylococcus aureus
(ML15009/pI258 + penicillin-resistant)
-
-
0.2 - ?
40
Staphylococcus aureus
(MS5935 topoisomerase IV)
-
-
0.2 - ?
40
Staphylococcus aureus
(MU3 + vancomycin-intermediate)
-
-
16 - ?
1034
Staphylococcus aureus
(MU50 + vancomycin-intermediate)
-
-
8 - ?
1034
Staphylococcus aureus
(N315)
-
-
0.125 - ?
670
Staphylococcus aureus
(N315ex)
-
-
0.125 - ?
670
Staphylococcus aureus
(oxacillin-resistant + levofloxacin-resistant)
32
64
16 - >64
225
Staphylococcus aureus
(oxacillin-resistant)
>4
>4
0.12 - >4
265
Staphylococcus aureus
(oxacillin-resistant)
8
8
0.125 - 8
225
Staphylococcus aureus
(oxacillin-susceptible)
0.12
0.25
0.06 - 2
265
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