Focus: Plumbing

Best conditions for Legionella bacteria growth

Warm tap water with dissolved organic matter supports the growth of biofilms


The bacteria that cause Legionnaire's disease grow well in warm tap water installations with ample dissolved organic matter —conditions that support the growth of biofilms, according to an article on the Infection Control Today website.

According to a study published in Applied and Environmental Microbiology, a journal of the American Society for Microbiology, the investigators developed a model system that enabled measurement of biofilm formation and growth of legionella. 

They compared a water supply system with a very low concentration of dissolved organic matter with one with a high concentration.

Drinking water from sources with higher concentrations of organic matter induced higher biofilm concentrations that supported legionella growth, according to the study.

Read the article.

 

 



February 13, 2018


Topic Area: Infection Control


Recent Posts

Choosing a Disinfectant That Kills Biofilm

Bacteria form biofilms in pipes from which cells can be released during sink use and spread outside the drains in droplets or as aerosols.


Third-Party Data Breach Case Underscores Need for Cyber Risk Management

Plaintiffs alleged negligence in safeguarding patient data; defendants denied wrongdoing but settled to avoid litigation costs.


Northwest Medical Specialties Reports Data Breach

An investigation determined that certain data within the network was potentially copied without authorization on August 15, 2025.


Streamlined Integrated Project Delivery Tackles Design Challenges

Successful implementation of IPD Light can improve patient care, project outcomes and bottom lines.


Encompass Health Rehabilitation Hospital of Central Florida - Sumter County Opens

It is a satellite location of Encompass Health Rehabilitation Hospital of Central Florida.


 
 


FREE Newsletter Signup Form

News & Updates | Webcast Alerts
Building Technologies | & More!

 
 
 


All fields are required. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.