| | Cooling Tower | PCR (GU/L) | Culture (CFU/L) | | Legionella spp. | L. pneumophila | Legionella spp. | L. pneumophila serogroup 1 | L. pneumophila serogroup 2–14 |
| | 1 | 61,800,000 | 73,200,000 | < Detection level | < Detection level | < Detection level | | 2 | 174,000 | <3,300 | 100 | 100 | < Detection level |
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