Epidemiological and clinical characteristics of legionellosis in Northern Australia, 2010-2021 – PubMed (nih.gov)

Published on 07/20/2022 | by Waterline Admin

Waller C, Freeman K, Labib S, Baird R. Epidemiological and clinical characteristics of legionellosis in Northern Australia, 2010-2021. Commun Dis Intell (2018). 2022 Jun 23;46. doi: 10.33321/cdi.2022.46.34. PMID: 35739069.


Objective: This study describes characteristics of the legionellosis cases occurring between 2010 and 2021 in the Northern Territory (NT), Australia.




  • A retrospective review of 53 cases of legionellosis .
  • All cases were sporadic but the incidence rate in the Northern Territory (NT) was higher than the Australian median rate (2.1 and 1.5 per 100,000 population per year respectively).
  • Aboriginal and Torres Strait Islander patients were younger than non-Indigenous patients (median 41 and 60 years of age respectively) and more cases in males.
  • There was a higher proportion of legionellosis in months with increased humidity, with a greater number of longbeachae infections detected overall (59%) than of L. pneumophila (41%).
  • Legionellosis in the NT is more common, seasonal, and may be underreported due to current reliance on serological testing for diagnosis.



Product & Service Spotlight

Introducing B & V Chemicals' new film forming amines for closed circuits and steam boilers.

Product Launch: Film forming amines.

This all-in-one solution offers low-dose, cost-effective treatment. Improves heat transfer efficiency by removing corrosion deposits, leading to cleaner surfaces. Enhances energy and resource efficiency by reducing Total Dissolved Solids (TDS). The stable film provided by polyamines ensures superior corrosion control, promoting longer equipment lifespan.

Plus - environmentally friendly, offering a greener alternative to traditional treatments.

Contact us on ownlabel@bvwater.co.uk for further information.

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:

Reduced exposure to fumes and bromine dust (non-pressurised system).

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

Wall mounted reducing footprint of installation.

Charge with product in under 5 minutes without isolation from the system.

Product calculators and tech support available.

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


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.