Provisional — subject to revision

Bloomingdale, Illinois

Legionnaires’ disease outbreak · Sep 2025 · Illinois

2
Cases: 0
Deaths: Closed
Status

Suspected source

Hospital (Senior living / assisted)

What happened

The Illinois Department of Public Health and the DuPage County Health Department investigated a cluster of two Legionnaires' disease cases, with onsets within one month of each other, in people who were at or near the Alden Valley Ridge Rehabilitation and Health Center, a skilled nursing facility in Bloomingdale, Illinois. IDPH environmental staff sampled the facility on September 22, 2025 and detected Legionella pneumophila in samples from a case's room and from the facility's cooling tower. IDPH imposed water restrictions and ordered a comprehensive water-system assessment and remediation testing. Both individuals recovered.

Affected ZIP codes

60108

Sources & coverage

In-depth reporting on this and other Legionnaires’ disease outbreaks is available from Pritzker Hageman’s Legionnaires’ disease resource center.

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Primary source: Hospital. Figures are provisional and may be revised or withdrawn by the reporting authority. This page is for information only and is not medical or legal advice.

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