Quantitative Measurement of Legionella pneumophila Counts in Routinely Mainta…

Abstract: Cooling towers are associated with transmission of the bacterium Legionella, the agent of Legionnaires’ Disease and Pontiac Fever. This study analyzed the numbers of Legionella pneumophila collected from 1,336 commercial and industrial cooling towers over a 4-year period. These cooling towers were routinely treated with biocides to reduce the growth of Legionella. Comparisons of L…