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Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.

Volume 32, Number 7—July 2026

Synopsis

Outbreak of Legionnaires’ Disease Linked to Newly Installed Residential Water Heaters, the Netherlands, 2022–2023

Daphne F.M. ReukersComments to Author , Sjoerd M. Euser, Alvin A. Bartels, Martijn G. Keet, Marijke Boot, Wilhelmina L.M. Ruijs, and Petra S. Brandsema
Author affiliation: Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands (D.F.M. Reukers, A.A. Bartels, M.G. Keet, M. Boot, W.L.M. Ruijs, P.S. Brandsema); Regional Public Health Laboratory Kennemerland, Haarlem, the Netherlands (S.M. Euser)

Main Article

Figure 1

Timeline of cases in an outbreak of Legionnaires’ disease linked to newly installed residential water heaters, the Netherlands, 2022–2023. Timelines show calendar weeks for case-patient illness onset in 2022 (A) and 2023 (B). Numbered cases are from 2 clusters (cluster 1 and cluster 2) in separate apartment buildings in the Netherlands. Red date is week public warning was issued.

Figure 1. Timeline of cases in an outbreak of Legionnaires’ disease linked to newly installed residential water heaters, the Netherlands, 2022–2023. Timelines show calendar weeks for case-patient illness onset in 2022 (A) and 2023 (B). Numbered cases are from 2 clusters (cluster 1 and cluster 2) in separate apartment buildings in the Netherlands. Red date is week public warning was issued.

Main Article

Page created: May 13, 2026
Page updated: June 02, 2026
Page reviewed: June 02, 2026
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