TABLE 4.

Elevation of MICs of nine β-lactams for integrants

StrainMIC (μg/ml)a
PENPCVAMPOXACFZFEPCTXZOXMEM
S. pneumoniae ATCC 496190.50.50.12210.250.120.50.12
S. agalactiae ATCC 124030.060.060.120.250.250.250.060.250.06
S. agalactiae ATCC BAA-6110.060.060.120.250.120.120.060.250.06
ATCC BAA-611 (B12 PBP 2X)0.50.50.12420.50.5320.12
ATCC BAA-611 (B503 PBP 2X)0.250.120.2520.50.50.12160.12
S. agalactiae B120.50.50.124211320.12
S. agalactiae B5030.250.120.2520.50.50.12160.12
  • a Abbreviations: PEN, penicillin G; PCV, penicillin V; AMP, ampicillin; OXA, oxacillin; CFZ, cefazolin; FEP, cefepime; CTX, cefotaxime; ZOX, ceftizoxime; MEM, meropemem.