Impact of prolonged hotel closures during the COVID-19 pandemic on Legionella infection risks

Published on 03/23/2023 | by Waterline Admin

 

Highlights

  • There are very few field studies comparing the level of Legionella colonisation in buildings before and after the pandemic lockdowns.
  • This study analysed a group of hotels that experienced prolonged closures in 2020 due to the COVID-19 pandemic.
  • Legionella spp. were analysed by standard culture, immediately after reopening, from the domestic water distribution systems of 73 hotels that experienced closures (from 1 to >4 months) during 2020.
  • The results were compared with those obtained in similar samples from 2019.
  • The results suggest that hotels that had the longest prolonged closures (> 3 months) may have had a higher risk of exposure to Legionella spp.
  • The authors suggest that the findings highlight the importance of adequate preopening cleaning and disinfection procedures for hotel water systems, and choosing the most effective disinfection methods, especially for hot water systems after prolonged closure periods.

 

LINK TO PAPER – CLICK HERE

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ANNOUNCING OUR NEW GRIME SCENE COMPETITION:

Following on from the successful Grime Scene competition, we have decided to continue the theme for another year, but with a twist. This year, we are asking for photographs of the grimiest pictures you can find accompanied with another photograph of how the ‘scene’ has been improved by your maintenance or cleaning.


We will display the photographs in each of the Waterline editions throughout 2024. The ‘most improved’ picture will be chosen by WMSoc members via an online vote. The winner will receive a £25 Amazon Gift Voucher after the Winter 2024/25 edition has been published.


Please send your photographs to:
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Product & Service Spotlight

Introducing B & V Chemicals' Multitreat SHD showerhead descalers.

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How the NEW SolidTek® Biocide Feeder Package will BENEFIT YOU

SolidTek® has launched its NEW Biocide Feeder which is functional, compact, and environmentally-friendly.

Designed for use with SolidTek’s® enhanced bromine biocide, BromTek, it offers multiple benefits:

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Use with field proven mixed hydantoin biocide - better performance than standard bromine tablets.

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Lovibond MD640 Photometer (PTSA & Fluorescein capable)

Product Spotlight Drop Test Kits

How many times have you heard … ‘we’re not sure what the system volume is’. A common problem which can be expensive - wasting chemical over dosing, or underdosing so the treatment is ineffective (i.e. shock dosing a biocide). The MD640 photometer has PTSA & Fluorescein capability built in. Simply use our System Checkers to add to an unknown system and read a PTSA or Fluorescein levels to accurately identify the system volume.

The Hydrosense PRO range

Hydrosense

The Hydrosense PRO range pioneers Legionella pneumophila detection, the cause of over 97% of Legionnaires’ disease outbreaks, by identifying all the serogroups 1-15 of this dangerous Legionella species. This easy-to-use, highly sensitive test uses unique filtration, offering a three-line test result that distinguishes between serogroup 1 and serogroups 2-15 within 25 minutes. The water test has a level of detection of 100 CFU/L and swab tests detect 200 CFU per swabbed area, providing crucial, rapid insights for water safety management.