# Legionellosis outbreak in Navarra, Spain

> Live situation record from CLSTR: https://clstr.news/situations/legionellosis-outbreak-in-navarra-spain
> Updated: 2026-09-08T11:37:26.000Z. Sources: 4. Developments: 2.

In early September 2026, health authorities in the Pamplona region of Navarra, Spain, identified a legionellosis outbreak involving 31 potential cases. The majority of those affected are aged 65 or older, with cases concentrated in Burlada, Villava, and several other local neighborhoods.

Following investigations by the Public Health and Labor Institute of Navarra (ISPLN), water supply networks were inspected and ruled out as the source of the infection. Consequently, suspicion has shifted toward local cooling towers. Authorities have ordered the closure of these towers and suspended operations at these facilities until safety requirements are met and sample testing is complete. Epidemiological surveys continue to identify specific exposure points.

## Timeline

### 2026-09-08: Pamplona region reports 31 legionellosis cases

A legionellosis outbreak in the Pamplona region of Navarra, Spain, has reached 31 potential cases, primarily affecting residents in Burlada and Villava. Authorities are investigating local cooling towers.

2 sources. https://clstr.news/cluster/pamplona-region-reports-31-legionellosis-cases

### 2026-08-26: Salmonellosis outbreaks reported in Eibar and Navarra

Salmonellosis outbreaks in Eibar and Navarra, Spain, have caused dozens of infections and one death, with Navarra reporting record case numbers linked to egg consumption.

2 sources. https://clstr.news/cluster/salmonellosis-outbreaks-reported-in-eibar-and-navarra

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Cite as: Legionellosis outbreak in Navarra, Spain. CLSTR, https://clstr.news/situations/legionellosis-outbreak-in-navarra-spain