Two-year evaluation of Legionella in an aging residential building: Assessment of multiple potable water remediation approaches.

ABSTRACT: Legionella is an opportunistic waterborne pathogen that is difficult to eradicate in colonized drinking water pipes. Legionella control is further challenged by aging water infrastructure and lack of evidence-based guidance for building treatment. This study assessed multiple premise water remediation approaches designed to reduce Legionella pneumophila within a residential building located in an aging, urban drinking water system over a two-year period. Samples (n = 745) were collected from hot and cold-water lines and quantified via most probable number culture. Building-level treatment approaches included three single heat shocks, three single chemical shocks, and continuous low-level chemical disinfection in the potable water system. The building was highly colonized with L. pneumophil

SUBMITTER: Lee-Masi M 

PROVIDER: S-EPMC11238177 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature