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USA: Danger of legionella from biofilm-colonised drinking water systems

In a recently published report by the US Centers for Disease Control and Prevention, drinking water-associated disease outbreaks in the USA between 2015 and 2020 were analysed. The data is based on outbreaks that were voluntarily reported by health authorities.

> During the study period, the number of Legionella-associated disease outbreaks increased.

> Drinking water contaminants, primarily biofilm-associated bacteria such as Legionella, cost the United States billions of dollars annually.

> The test results once again show the urgent need for regular monitoring and cleaning of drinking water systems.


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