TABLE 2.
Repeat copy numbers of S. epidermidis isolates at five variable-number tandem repeat loci and information on their clinical backgrounds
| Isolate | Clinical context (yr) | PFGE banding patterna | Repeat copy no. at tandem repeat locus:
|
||||
|---|---|---|---|---|---|---|---|
| Se1 | Se2 | Se3 | Se4 | Se5 | |||
| ATCC 12228 | Non-biofilm-forming reference strain | A3 | 29 | 3 | 18 | 4 | 75 |
| 1 | SSIc pancreatic surgery (2002) | A | 23 | 1 | 14 | 1 | 57 |
| 2 | Pacemaker infection, thoracic surgery (2002) | A | 23 | 1 | 14 | 1 | 57 |
| 3 | Bone tissue culture, revision of hip arthroplasty (2002) | A | 23 | 1 | 14 | 1 | 57 |
| 4 | Sternal osteomyelitis, cardiac valvular replacement (2002) | A | 23 | 1 | 14 | 1 | 57 |
| 5 | SSI, internally fixed elbow fracture (2001) | A | 23 | 1 | 14 | 1 | 57 |
| 6 | SSI, internally fixed tibial fracture (2001) | A | 23 | 1 | 14 | 1 | 57 |
| 7 | CVCd tip culture, drug-induced rhabdomyolysis (2001) | A | 23 | 1 | 14 | 1 | 57 |
| 9 | Endophthalmitis, cataract surgery (2002) | A | 23 | 1 | 14 | 1 | 57 |
| 22 | Femoral artery access site infection, acute aortic dissection (2001) | A | 23 | 1 | 14 | 1 | 57 |
| 8 | Temporary pacing lead culture, acute aortic dissection (2001) | A | 23 | 1 | 12 | 1 | 57 |
| 14 | CVC tip culture, endocarditis (2002) | A1 | 23 | 1 | 14 | 1 | 58 |
| 15 | CVC tip culture, cardiac valvular replacement (2002) | A1 | 23 | 1 | 14 | 1 | 58 |
| 17 | Leg ulcer, plastic surgery (2001) | A | 23 | 1 | 14 | 1 | 58 |
| 10 | CVC tip culture, revision of hip arthroplasty (2002) | A2 | 23 | 1 | 14 | 1 | 59 |
| 11 | CVC tip culture, coiling of cerebral aneurysm (2002) | A2 | 23 | 1 | 14 | 1 | 59 |
| 12 | SSI, failed internal fixation of hip fracture (2001) | A2 | 23 | 1 | 14 | 1 | 59 |
| 13 | Femoral artery catheter tip culture, gastroesophageal resection (2001) | A2 | 23 | 1 | 14 | 1 | 59 |
| 29 | SSI, kidney transplantation (2001) | G | 8 | 4 | 19 | 1 | 55 |
| 30 | Nose swab culture, neutropenia (2002) | G | 8 | 4 | 19 | 1 | 0b |
| 28 | Incisional SSI, hip arthroplasty (2002) | B | 8 | 1 | 13 | 4 | 0b |
| 23 | Face wound, fatal multitrauma (2001) | D | 38 | 2 | 18 | 1 | 69 |
| 18 | Skin ulcer culture, neutropenia (2001) | C | 9 | 1 | 20 | 2 | 60 |
| 16 | Nose swab culture, neutropenia (2001) | E | 39 | 2 | 12 | 2 | 59 |
| 24 | Central venous port culture, chronic liver disease (2002) | F | 39 | 2 | 11 | 2 | 59 |
| 26 | CVC tip culture, revision of hip arthroplasty (2002) | K | 34 | 2 | 13 | 4 | 74 |
| 19 | Perianal abscess, surgical incision (2001) | I | 38 | 2 | 13 | 4 | 74 |
| 21 | Perirectal abscess, fistula of Crohn's disease (2001) | I1 | 38 | 2 | 13 | 4 | 74 |
| 27 | SSI, limb amputation (2002) | I2 | 38 | 2 | 13 | 4 | 74 |
| 20 | Blood culture, sepsis, gastric resection (2001) | H | 37 | 2 | 13 | 4 | 0b |
| 25 | CVC tip culture, lung resection (2002) | J | 38 | 2 | 13 | 4 | 0b |
a
Banding patterns were interpreted as described by Tenover et al. (15). Banding patterns were assigned arbitrary letter codes (A, B, C…). Different letters indicate unrelated isolates (seven or more band differences). Closely or possibly related banding patterns (two to six band differences) were considered subtypes and are indicated by number codes (A, A1, A2…).
b
DNA of these isolates was not amplified.
c
SSI, surgical site infection.
d
CVC, central venous catheter.