Table 3.
Summary of the bacterial load remaining after processing human semen by density gradient centrifugation, with or without a tube insert. DGC, density gradient centrifugation.
| Spiking Dose | Method | Enterobacter-cloacae | Enterococcus faecalis | Escherichia coli | Coagulase Neg. Staphylococcus | Staph. aureus | Candida albicans |
|---|---|---|---|---|---|---|---|
| 1 × 103 | DGC | 10% | 0% | 10% | 10%–40% | 0% | 0% |
| 1 × 104 | DGC | 1%–10% | 44%–121% | 3%–6% | 5%–10% | 1% | 3%–4% |
| 1 × 105 | DGC | 4%–7% | 24%–27% | 23%–25% | 2%–4% | 2%–6% | 0.7%–0.9% |
| 1 × 106 | DGC | 2%–3% | 3%–4% | 5%–6% | 1%–3% | 1%–2% | 0.2% |
| 1 × 103 | DGC + insert | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 × 104 | DGC + insert | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 × 105 | DGC + insert | 0 | 0.2% | 0.1% | 0.1%–0.3% | 0.4%–0.9% | 0 |
| 1 × 106 | DGC + insert | 0.4%–0.7% | 6%–10% | 0.1% | 1%–1.5% | 1.5% | 0.2% |
Note: summarized from [35].