Home › Search by Antimicrobial › Levofloxacin (Levaquin, Quixin)
Microorganism MIC50sort
(μg/ml)		 MIC90sort
(μg/ml)		 Rangesort
(μg/ml)		 Reference
Streptococcus pneumonia (penicillin-susceptible) - 1 ? － ? 341
Streptococcus pneumonia (penicillin-susceptible) - 8 ? － ? 1044
Streptococcus pneumonia (penicillin-susceptible) - - 1 － ? 963
Streptococcus pneumonia (quinolone-resistant) 8 16 0.5 － 16 3
Streptococcus pneumonia (quinolone-susceptible) 0.5 0.5 0.25 － 1 3
Streptococcus pneumonia (R6) - - 0.5 － ? 243
Streptococcus pneumonia (R6p16b1b14) - - 128 － ? 243
Streptococcus pneumonia (R6tr5929) - - 1 － ? 243
Streptococcus pneumonia (RT1) - - >8 － ? 388
Streptococcus pneumonia (serovar 11 + penicillin-intermediate) - - 1 － ? 268
Streptococcus pneumonia (serovar 23F + penicillin-resistant) - - 1 － ? 268
Streptococcus pneumonia (serovar 3 + penicillin-susceptible) - - 1 － ? 268
Streptococcus pneumonia (SP30) - - 1 － ? 388
Streptococcus pneumonia (SPn5907) - - 1 － ? 243
Streptococcus pneumonia (SPn5929) - - 2 － ? 243
Streptococcus pneumonia (Viridans group + penicillin-intermediate) 1 1 0.5 － 1 16
Streptococcus pneumoniae 1 1 0.5 － 1 1598
Streptococcus pneumoniae - - 1000 － 16000 1561
Streptococcus pneumoniae (levofloxacin-susceptible) 0.5 0.5 0.25 － 2 1467
Streptococcus pyogenes 0.25 0.5 0.06 － 1 443
Streptococcus pyogenes 0.25 0.5 0.06 － 1 130
Streptococcus pyogenes 0.25 0.5 0.12 － 0.5 175
Streptococcus pyogenes 0.5 0.5 0.25 － 2 1467
Streptococcus pyogenes 0.5 1 0.25 － 16 268
Streptococcus pyogenes 0.5 1 0.5 － 2 109
Streptococcus pyogenes 0.5 2 0.25 － 2 225
Streptococcus pyogenes 0.5 2 0.25 － 2 120
Streptococcus pyogenes 0.78 1.56 0.025 － 1.56 17