---
title: Forensic engineering, architectural and construction articles and insights | CCA Blog | legionella
description: legionella | The CCA blog will feature forensic engineering, architectural and construction related industry insights, case studies, featured projects, and more.
---

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## [Managing Legionella Risks During Reopening](https://www.ccaco.com/blog/managing-legionella-risks-during-reopening)

 [fa icon="calendar'] Jun 24, 2020 12:33:32 PM / by [Michael P. Mellette, Sc.D., CIH, CSP, CHMM](https://www.ccaco.com/blog/author/michael-p-mellette-sc-d-cih-csp-chmm)

The prolonged shutdown of businesses and buildings during the COVID-19 pandemic has resulted in significant reductions in normal water use for many commercial buildings, hotels, and public facilities. These reductions have increased the opportunity for Legionella growth in building water systems and created a significant risk for transmission of this waterborne bacteria to returning occupants. It's important that building owners and managers understand the risks leading to increased Legionella growth and consider them as part of an overall reopening strategy.

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