Table 2. Characteristics of Staphylococcus epidermidis isolated from controls*†.
| Control | Pretreatment‡ |
Posttreatment‡ |
1 year posttreatment‡ |
4 years posttreatment‡ |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Isolate | MIC | DNA | Isolate | MIC | DNA | Isolate | MIC | DNA | Isolate | MIC | DNA | |
| 1 | 1A:1 | 0.064 | – | 1B:1 | 0.064 | – | 1C:1 | 0.094 | FF | 1D:1 | 0.064 | JJ |
| 1A:2 | 0.064 | AA | 1B:2 | 0.064 | BB | 1C:2 | 0.094 | GG | 1D:2 | 0.047 | JJ | |
| 1A:3 | 0.064 | – | 1B:3 | 0.094 | – | 1C:3 | 0.047 | GG | 1D:3 | 0.064 | JJ | |
| 1A:4 | 0.064 | BB | 1B:4 | 0.064 | FF | 1C:4 | 0.064 | HH | 1D:4 | 0.064 | JJ | |
| 1A:5 | 0.064 | CC | 1B:5 | 0.047 | BB | 1C:5 | 0.064 | HH | 1D:5 | 0.094 | JJ | |
| 1A:6 | 0.064 | DD | 1B:6 | 0.047 | FF | 1C:6 | 0.032 | HH | 1D:6 | 0.064 | JJ | |
| 1A:7 | 0.047 | – | 1B:7 | 0.064 | – | 1C:7 | 0.032 | HH | 1D:7 | 0.064 | JJ | |
| 1A:8 | 0.064 | – | 1B:8 | 0.064 | FF | 1C:8 | 0.047 | HH | 1D:8 | 0.064 | JJ | |
| 1A:9 | 0.047 | EE | 1B:9 | 0.064 | FF | 1C:9 | 0.047 | HH | 1D:9 | 0.064 | JJ | |
| 1A:10 | 0.064 | CC | 1B:10 | 0.047 | – | 1C:10 | 0.047 | HH | 1D:10 | 0.064 | JJ | |
| 2 | 2A:1 | 0.094 | KK | 2B:1 | 0.094 | KK | 2C:1 | 0.094 | LL | 2D:1 | 0.094 | KK |
| 2A:2 | 0.047 | LL | 2B:2 | 0.064 | LL | 2C:2 | 0.047 | OO | 2D:2 | 0.094 | KK | |
| 2A:3 | 0.094 | LL | 2B:3 | 0.064 | – | 2C:3 | 0.047 | OO | 2D:3 | 0.094 | LL | |
| 2A:4 | 0.047 | KK | 2B:4 | 0.064 | LL | 2C:4 | 0.047 | OO | 2D:4 | 0.094 | MM | |
| 2A:5 | 0.064 | KK | 2B:5 | 0.064 | LL | 2C:5 | 0.064 | LL | 2D:5 | 0.094 | LL | |
| 2A:6 | 0.064 | MM | 2B:6 | 0.064 | LL | 2C:6 | 0.064 | PP | 2D:6 | 0.094 | KK | |
| 2A:7 | 0.064 | KK | 2B:7 | 0.064 | LL | 2C:7 | 0.047 | PP | 2D:7 | 0.094 | LL | |
| 2A:8 | 0.094 | LL | 2B:8 | 0.047 | KK | 2C:8 | 0.047 | PP | 2D:8 | 0.125 | KK | |
| 2A:9 | 0.064 | KK | 2B:9 | 0.064 | NN | 2C:9 | 0.125 | LL | 2D:9 | 0.064 | KK | |
| 2A:10 | 0.094 | KK | 2B:10 | 0.032 | NN | 2C:10 | 0.047 | OO | 2D:10 | 0.094 | KK | |
| 3 | 3A:1 | 0.125 | 3B:1 | 0.125 | 3C:1 | 0.125 | 3D:1 | 0.125 | ||||
| 3A:2 | 0.125 | 3B:2 | 0.125 | 3C:2 | 0.125 | 3D:2 | 0.125 | |||||
| 3A:3 | 0.125 | 3B:3 | 0.125 | 3C:3 | 0.125 | 3D:3 | 0.125 | |||||
| 3A:4 | 0.125 | 3B:4 | 0.125 | 3C:4 | 0.125 | 3D:4 | 0.125 | |||||
| 3A:5 | 0.125 | 3B:5 | 0.125 | 3C:5 | 0.125 | 3D:5 | 0.25 | |||||
| 3A:6 | 0.125 | 3B:6 | 0.125 | 3C:6 | 0.25 | 3D:6 | 0.25 | |||||
| 3A:7 | 0.125 | 3B:7 | 0.25 | 3C:7 | 0.25 | 3D:7 | 0.25 | |||||
| 3A:8 | 0.25 | 3B:8 | 0.25 | 3C:8 | 0.25 | 3D:8 | 0.25 | |||||
| 3A:9 | 0.25 | 3B:9 | 0.25 | 3C:9 | 0.25 | 3D:9 | 0.25 | |||||
| 3A:10 | 0.25 | 3B:10 | 0.25 | 3C:10 | 0.25 | 3D:10 | 0.25 | |||||
| 4 | 4A:1 | 0.125 | 4B:1 | 0.125 | 4C:1 | 0.125 | 4D:1 | 0.125 | ||||
| 4A:2 | 0.125 | 4B:2 | 0.125 | 4C:2 | 0.125 | 4D:2 | 0.125 | |||||
| 4A:3 | 0.125 | 4B:3 | 0.125 | 4C:3 | 0.125 | 4D:3 | 0.125 | |||||
| 4A:4 | 0.125 | 4B:4 | 0.125 | 4C:4 | 0.125 | 4D:4 | 0.125 | |||||
| 4A:5 | 0.25 | 4B:5 | 0.125 | 4C:5 | 0.125 | 4D:5 | 0.125 | |||||
| 4A:6 | 0.25 | 4B:6 | 0.25 | 4C:6 | 0.125 | 4D:6 | 0.125 | |||||
| 4A:7 | 0.25 | 4B:7 | 0.25 | 4C:7 | 0.125 | 4D:7 | 0.125 | |||||
| 4A:8 | 0.25 | 4B:8 | 0.25 | 4C:8 | 0.25 | 4D:8 | 0.125 | |||||
| 4A:9 | 0.25 | 4B:9 | >256 | 4C:9 | 0.25 | 4D:9 | 0.125 | |||||
| 4A:10 | >256 | 4B:10 | >256 | 4C:10 | 0.25 | 4D:10 | 0.125 | |||||
| 5 | 5A:1 | 0.125 | 5B:1 | 0.125 | 5C:1 | 0.125 | 5D:1 | 0.125 | ||||
| 5A:2 | 0.125 | 5B:2 | 0.125 | 5C:2 | 0.125 | 5D:2 | 0.125 | |||||
| 5A:3 | 0.125 | 5B:3 | 0.125 | 5C:3 | 0.125 | 5D:3 | 0.125 | |||||
| 5A:4 | 0.125 | 5B:4 | 0.125 | 5C:4 | 0.125 | 5D:4 | 0.125 | |||||
| 5A:5 | 0.125 | 5B:5 | 0.125 | 5C:5 | 0.125 | 5D:5 | 128 | |||||
| 5A:6 | 0.125 | 5B:6 | 0.125 | 5C:6 | 0.125 | 5D:6 | 128 | |||||
| 5A:7 | 0.125 | 5B:7 | 0.125 | 5C:7 | 0.125 | 5D:7 | 128 | |||||
| 5A:8 | 0.125 | 5B:8 | 0.125 | 5C:8 | 0.125 | 5D:8 | 128 | |||||
| 5A:9 | 0.125 | 5B:9 | 0.125 | 5C:9 | 0.125 | 5D:9 | 0.064 | |||||
| 5A:10 | 0.25 | 5B:10 | 0.125 | 5C:10 | 0.125 | 5D:10 | 64 | |||||
*Isolates from only 2 controls were DNA fingerprinted. †Time points are defined with respect to treatment, although the control group received no treatment. For each control and time point, 10 independent isolations of S. epidermidis were performed. ‡Clarithromycin MIC measured by Etest. DNA fingerprinting by pulsed-field gel electrophoresis; different patterns are indicated as letters. –, not determined.