Organism/Antibiotic | MIC50 | MIC90 | MIC Range | % Susceptible | % Intermediate | % Resistant | |||
---|---|---|---|---|---|---|---|---|---|
MRSA (n = 155) | |||||||||
Ceftaroline | 1 | 2 | ≤ 0.06-2 | 83.9 | 16.1 | 0 | |||
Ampicillin | > 8 | > 8 | 2->8 | NA | NA | NA | |||
Ampicillin-sulbactam | 8/4 | > 8/4 | 0.5/0.25->8/4 | NA | NA | NA | |||
Levofloxacin | 0.25 | > 4 | 0.06->4 | 71.0 | 0.6 | 28.4 | |||
Tigecycline | 0.25 | 0.5 | 0.06-1 | 93.5 | 6.5 | 0 | |||
MSSA (n = 251) | |||||||||
Ceftaroline | 0.5 | 0.5 | 0.12-1 | 100 | 0 | 0 | |||
Ampicillin | > 8 | > 8 | ≤ 0.25->8 | NA | NA | NA | |||
Ampicillin-sulbactam | 2/1 | 4/2 | ≤ 0.25/0.12->8/4 | NA | NA | NA | |||
Levofloxacin | 0.25 | > 4 | 0.06->4 | 88.4 | 0.8 | 10.8 | |||
Tigecycline | 0.25 | 0.5 | 0.06-1 | 99.2 | 0.8 | 0 | |||
Enterococcus faecalis(n = 109) | |||||||||
Ceftaroline | 2 | 4 | 0.12->16 | NA | NA | NA | |||
Ampicillin | 1 | 2 | ≤ 0.25-2 | 100 | 0 | 0 | |||
Ampicillin-sulbactam | 1/0.5 | 2/1 | ≤ 0.25/0.12-2/1 | NA | NA | NA | |||
Levofloxacin | 1 | > 4 | 0.25->4 | 73.4 | 0 | 26.6 | |||
Tigecycline | 0.25 | 0.5 | 0.06–0.5 | 74.3 | 25.7 | 0 | |||
Enterococcus faecium(n = 64) | |||||||||
Ceftaroline | > 16 | > 16 | 2->16 | NA | NA | NA | |||
Ampicillin | > 8 | > 8 | 1->8 | 9.4 | 0 | 90.6 | |||
Ampicillin-sulbactam | > 8/4 | > 8/4 | 1/0.5->8/4 | NA | NA | NA | |||
Levofloxacin | > 4 | > 4 | 0.5->4 | 4.7 | 0 | 95.3 | |||
Tigecycline | 0.12 | 0.25 | 0.03–0.25 | NA | NA | NA | |||
Streptococcus pneumoniae(n = 77)a | |||||||||
Ceftaroline | 0.06 | 0.25 | 0.008-0.5 | 100 | 0 | 0 | |||
Penicillin | 0.5 | 4 | ≤ 0.06->4 | 44.16 | 9.09 | 46.75 | |||
Ampicillin-sulbactam | 0.5/0.25 | > 4/2 | ≤ 0.12/0.06->4/2 | NA | NA | NA | |||
Cefoperazone-sulbactam | 2/2 | > 4/4 | ≤ 0.12/0.12->4/4 | NA | NA | NA | |||
Levofloxacin | 1 | 1 | 0.5-2 | 100 | 0 | 0 | |||
Meropenem | 0.12 | 1 | ≤ 0.03-1 | 55.8 | 23.4 | 20.8 | |||
Piperacillin-tazobactam | 1/4 | > 4/4 | ≤ 0.25/4->4/4 | NA | NA | NA | |||
Tigecycline | 0.015 | 0.03 | ≤ 0.008–0.06 | 100 | 0 | 0 | |||
PRSP (n = 36) | |||||||||
Ceftaroline | 0.25 | 0.25 | 0.06–0.5 | 100 | 0 | 0 | |||
Ampicillin-sulbactam | 4/2 | > 4/2 | 2/1->4/2 | NA | NA | NA | |||
Cefoperazone-sulbactam | 4/4 | > 4/4 | 2/2->4/4 | NA | NA | NA | |||
Levofloxacin | 1 | 1 | 0.5-2 | 100 | 0 | 0 | |||
Meropenem | 0.5 | 1 | 0.25-1 | 8.3 | 47.2 | 44.4 | |||
Piperacillin-tazobactam | > 4/4 | > 4/4 | 2/4->4/4 | NA | NA | NA | |||
Tigecycline | 0.015 | 0.03 | 0.015–0.03 | 100 | 0 | 0 | |||
PSSP (n = 34)b | |||||||||
Ceftaroline | 0.015 | 0.03 | 0.008–0.12 | 100 | 0 | 0 | |||
Ampicillin-sulbactam | ≤ 0.12/0.06 | ≤ 0.12/0.06 | ≤ 0.12/0.06-≤0.12/0.06 | NA | NA | NA | |||
Cefoperazone-sulbactam | ≤ 0.12/0.12 | 0.25/0.25 | ≤ 0.12/0.12-1/1 | NA | NA | NA | |||
Levofloxacin | 1 | 2 | 0.5-2 | 100 | 0 | 0 | |||
Meropenem | ≤ 0.03 | ≤ 0.03 | ≤ 0.03–0.5 | 97.1 | 2.9 | 0 | |||
Piperacillin-tazobactam | ≤ 0.25/4 | ≤ 0.25/4 | ≤ 0.25/4-≤0.25/4 | NA | NA | NA | |||
Tigecycline | 0.015 | 0.03 | ≤ 0.008–0.06 | 100 | 0 | 0 | |||
Coagulase-negative staphylococci (n = 125) | |||||||||
Ceftaroline | 0.5 | 4 | ≤ 0.06->16 | NA | NA | NA | |||
Ampicillin | > 8 | > 8 | ≤ 0.25->8 | NA | NA | NA | |||
Ampicillin-sulbactam | 4/2 | > 8/4 | ≤ 0.25/0.12->8/4 | NA | NA | NA | |||
Levofloxacin | > 4 | > 4 | ≤ 0.03->4 | 32.0 | 0.8 | 67.2 | |||
Tigecycline | 0.25 | 0.5 | 0.03-1 | NA | NA | NA | |||
β-hemolytic streptococci (n = 64)c | |||||||||
Ceftaroline | 0.015 | 0.03 | ≤ 0.004–0.06 | 100 | 0 | 0 | |||
Ampicillin-sulbactam | ≤ 0.12/0.06 | ≤ 0.12/0.06 | ≤ 0.12/0.06–0.5/0.25 | NA | NA | NA | |||
Cefoperazone-sulbactam | 0.25/0.25 | 1/1 | ≤ 0.12/0.12-4/4 | NA | NA | NA | |||
Levofloxacin | 0.5 | 1 | ≤ 0.25->4 | 98.4 | 0 | 1.6 | |||
Meropenem | ≤ 0.03 | 0.12 | ≤ 0.03–0.25 | 100 | 0 | 0 | |||
Piperacillin-tazobactam | ≤ 0.25/4 | 0.5/4 | ≤ 0.25/4-0.5/4 | NA | NA | NA | |||
Tigecycline | 0.03 | 0.06 | ≤ 0.008–0.12 | 100 | 0 | 0 |