A recently completed study by respected AWT Company, Weas Engineering of Westfield, IN, looked at the Association of Amoeba and Legionella in Potable Water Systems. The study also looked at the efficacy of three disinfection strategies in reducing amoeba and therefore affect subsequent events that ultimately result in the acquisition of legionellosis.
The three disinfection strategies tested for efficacy against amoebae were Chlorine, Chlorine Dioxide and Monochloramine. Of these three, the study found that Chlorine Dioxide is the best able to control and mitigate the growth of Amoeba. Continuous use of Chlorine Dioxide in potable water systems may be an effective strategy to prevent amoeba from attaining detectable concentrations, and in doing so, also present an effective strategy for preventing the growth of Legionella in potable water systems.
This and other studies can be viewed here http://www.weasengineering.com/legionella.html
These findings support the observations and results attained from the real-world application of Chlorine Dioxide technology by The Metro Group in Legionella Remediation projects. For systems with chronic issues, Chlorine Dioxide has been shown to drastically reduce the presence of Legionella bacteria and will continue to play a central role in the Legionella remediation and disinfection strategies employed by The Metro Group.