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Legionella concentration in DUW analyzed in the context of periodical microbiological monitoring
| Legionella concentration cfu/100 ml | Contaminated samples (n) | Contaminated samples (%) |
|---|---|---|
| 1–99 | 4 | 16.0 |
| 100–999 | 13 | 52.0 |
| 1000–9999 | 7 | 28.0 |
| >10,000 | 1 | 4.0 |
| Total | 25 | 100.0 |
