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Table 2 Microbiological analysis of hot water sampled from the entire water system of the hospital

From: Legionella pneumophila serogroup 3 pneumonia in a patient with low-grade 4 non-Hodgkin lymphoma: a case report

Sampling site Sampling mode Legionella pneumophila load, CFU/L
Water mains Pre-flushing Not detected
  Post-flushing Not detected
Hospital water harvesting tanks Pre-flushing Not detected
  Post-flushing Not detected
Collector pipes Pre-flushing Not detected
  Post-flushing Not detected
Boiler Pre-flushing 5 × 103
  Post-flushing 4.5 × 103
Room closest to the boiler (sink) Pre-flushing 6.5 × 103
  Post-flushing 7 × 103
Room farthest from the boiler (sink) Pre-flushing 4 × 103
  Post-flushing 5 × 102
  1. CFU/L: colony-forming units per liter.