Home › Search by Antimicrobial › Levofloxacin (Levaquin, Quixin)
Microorganism MIC50sort
(μg/ml)		 MIC90sort
(μg/ml)		 Rangesort
(μg/ml)		 Reference
Streptococci (serogroup A + β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (serogroup A) 0.5 0.5 0.25 － 2 117
Streptococci (serogroup A) 1 1 0.5 － 2 19
Streptococci (serogroup B + β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (serogroup B) 0.5 0.5 0.5 － ? 117
Streptococci (serogroup C + β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (serogroup C/G) 0.5 1 0.5 － 1 117
Streptococci (serogroup D) >4 >4 0.06 － >4 472
Streptococci (serogroup F + β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (serogroup G + β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (Viridans group + penicillin-intermediate) >1 >4 ? － ? 39
Streptococci (Viridans group + penicillin-resistant) 1 2 0.5 － 2 117
Streptococci (Viridans group + penicillin-resistant) 1 2 0.5 － 32 19
Streptococci (Viridans group + penicillin-resistant) 4 8 1 － 16 1396
Streptococci (Viridans group + penicillin-susceptible) 0.5 2 0.5 － 2 19
Streptococci (Viridans group + penicillin-susceptible) 1 2 0.5 － 2 117
Streptococci (Viridans group + penicillin-susceptible) 1 2 ? － ? 39
Streptococci (Viridans group + penicillin-susceptible) 2 8 ≤0.015 － 64 1396
Streptococci (Viridans group) 0.5 1 0.25 － >8 73
Streptococci (Viridans group) 1 2 ≤0.03 － >4 265
Streptococci (Viridans group) 1 2 ≤0.25 － 4 371
Streptococci (Viridans group) 1 2 0.25 － 4 120
Streptococci (Viridans group) 1 2 1 － 4 3
Streptococci (β-hemolytic) 0.5 1 0.06 － >4 472
Streptococci (β-hemolytic) 0.5 1 0.12 － 2 265
Streptococci (β-hemolytic) 0.5 1 ? － ? 39
Streptococcus (group A) 0.5 0.5 ≤0.12 － 1 73
Streptococcus (group B) 0.5 1 0.25 － 1 73