Table 5 Comparison of action/alert levels using quantitative PCR (qPCR) and immunomagnetic separation based method (IMS) for Legionella spp
From: Comparing methods of determining Legionella spp. in complex water matrices
IMS method no. | |||||||
|---|---|---|---|---|---|---|---|
Legionellaspp | Action | Alert | Satisfactory | Total | |||
Hot/cold sanitary | Cooling towers | ≥10 4 CFU l −1 | ≥10 3 CFU l −1 | <10 3 CFU l −1 | |||
Action | ≥105 GU l−1 | ≥106 GU l−1 | 10 | 2 | 0 | 12 | |
qPCR no. | Alert | ≥104 GU l−1 | ≥105 GU l−1 | 0 | 2 | 1 | 3 |
Satisfactory | <104 GU l−1 | < 105 GU l−1 | 1 | 5 | 62 | 68 | |
Total | 11 | 9 | 63 | 83 | |||