TABLE 1.
Assigned group | Strain | Sourcea | Serotype | β-Lactamase | PBP affinity
|
MIC (μg/ml)
|
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PBP 3A | PBP 3B | PBP 4 | AMP | CEC | CTX | CRO | CPD | CDR | CDN | CPN | FRM | MEM | |||||
Control | MT196 | Na | NSb | − | Nc | N | N | 0.125 | 0.5 | 0.008 | 0.004 | 0.016 | 0.25 | 0.008 | 0.008 | 0.25 | 0.031 |
MT053 | Na | NS | − | N | N | N | 0.25 | 1 | 0.008 | 0.004 | 0.031 | 0.125 | 0.008 | 0.008 | 0.25 | 0.031 | |
TK422 | Na | NS | − | N | N | N | 0.5 | 2 | 0.031 | 0.008 | 0.063 | 0.5 | 0.016 | 0.016 | 0.5 | 0.063 | |
TC01 | CSF | b | + | NDd | ND | ND | 8 | 2 | 0.016 | 0.004 | 0.063 | 0.5 | 0.016 | 0.016 | 0.5 | 0.031 | |
AK01 | CSF | b | + | ND | ND | ND | 8 | 2 | 0.016 | 0.008 | 0.063 | 0.5 | 0.008 | 0.016 | 0.25 | 0.031 | |
I | ME2014 | Ot | NS | − | De | N | N | 1 | 32 | 0.063 | 0.016 | 0.25 | 2 | 0.031 | 0.063 | 2 | 0.031 |
ME1547 | Na | NS | − | D | N | N | 1 | 64 | 0.063 | 0.008 | 0.5 | 4 | 0.031 | 0.125 | 1 | 0.063 | |
ME692 | Na | NS | − | D | N | N | 1 | 32 | 0.063 | 0.016 | 0.5 | 4 | 0.063 | 0.125 | 0.5 | 0.125 | |
ME1503 | Na | NS | − | D | N | N | 1 | 64 | 0.063 | 0.016 | 1 | 8 | 0.063 | 0.125 | 2 | 0.125 | |
H17 | Na | NS | − | D | N | N | 1 | 32 | 0.063 | 0.008 | 0.25 | 2 | 0.031 | 0.125 | 1 | 0.125 | |
N130 | Na | NS | − | D | N | N | 1 | 32 | 0.063 | 0.016 | 0.25 | 2 | 0.031 | 0.125 | 1 | 0.25 | |
H2 | Na | NS | − | D | N | N | 4 | 64 | 0.25 | 0.031 | 1 | 2 | 0.063 | 0.25 | 1 | 0.025 | |
ME1495 | Na | NS | + | ND | ND | ND | 64 | 64 | 0.125 | 0.016 | 0.5 | 4 | 0.063 | 0.125 | 1 | 0.031 | |
H7 | Na | NS | + | ND | ND | ND | 64 | 64 | 0.125 | 0.031 | 4 | 8 | 0.063 | 0.5 | 1 | 0.25 | |
II | ND01 | CSF | b | − | D | N | N | 1 | 32 | 0.063 | 0.016 | 0.25 | 8 | 0.031 | 0.125 | 2 | 0.25 |
KK01 | CSF | b | − | D | N | N | 1 | 64 | 0.063 | 0.031 | 0.25 | 4 | 0.031 | 0.125 | 0.5 | 0.125 | |
ME570 | Na | NS | − | D | D | N | 1 | 64 | 0.063 | 0.016 | 1 | 2 | 0.031 | 0.125 | 1 | 0.25 | |
ME587 | Na | NS | − | D | D | N | 1 | 64 | 0.063 | 0.008 | 0.25 | 4 | 0.031 | 0.063 | 1 | 0.25 | |
ME495 | Na | NS | − | D | N | N | 1 | 64 | 0.125 | 0.031 | 1 | 4 | 0.063 | 0.25 | 2 | 0.125 | |
MT273 | Na | NS | − | D | N | N | 2 | 32 | 0.063 | 0.016 | 0.5 | 2 | 0.031 | 0.125 | 8 | 0.5 | |
MT160 | Na | NS | − | D | N | N | 2 | 32 | 0.063 | 0.008 | 0.5 | 2 | 0.031 | 0.125 | 2 | 0.5 | |
ME267 | Ot | NS | − | D | D | N | 2 | 32 | 0.063 | 0.016 | 0.25 | 1 | 0.031 | 0.063 | 2 | 0.25 | |
ME040 | Ot | NS | − | D | N | D | 2 | 64 | 0.063 | 0.063 | 1 | 4 | 0.063 | 0.25 | 2 | 0.25 | |
ME1210 | Na | NS | − | D | D | N | 4 | 64 | 0.125 | 0.031 | 1 | 4 | 0.063 | 0.25 | 2 | 0.25 | |
MT313 | Na | NS | − | D | N | N | 4 | 64 | 0.125 | 0.031 | 1 | 4 | 0.063 | 0.25 | 2 | 0.25 | |
ME1976 | Na | NS | + | ND | ND | ND | 64 | 32 | 0.063 | 0.016 | 0.25 | 2 | 0.016 | 0.125 | 1 | 0.063 | |
III | MT066 | Na | NS | − | D | D | N | 2 | 64 | 1 | 0.25 | 4 | 8 | 0.25 | 1 | 2 | 0.25 |
MT070 | Na | NS | − | D | D | N | 2 | 64 | 1 | 0.25 | 4 | 8 | 0.125 | 1 | 4 | 0.125 | |
ME1133 | Na | NS | − | D | N | D | 4 | 64 | 1 | 0.25 | 8 | 16 | 0.25 | 2 | 2 | 0.25 | |
ME870 | Na | NS | − | D | D | N | 4 | 64 | 2 | 0.25 | 4 | 16 | 0.5 | 2 | 4 | 0.5 |
Na, nasopharynx; Ot, otorrhea; CSF; cerebrospinal fluid.
NS, not specified.
N, PBP affinity is normal.
ND, not determined.
D, PBP affinity is decreased.