Circulation water. Comparison of the amount of Legionella detected by culture and by qPCR. Legionella species and the Legionella pneumophila assay in circulation water before and after the two interventions. LOQ: Limit of quantification. Water samples were collected from both bathroom and kitchen hot water taps. Each triangle, dot and square represents one sample.
Krøjgaard et al. BMC Microbiology 2011 11:254 doi:10.1186/1471-2180-11-254