Legionnaires' Disease Outbreak Investigation at Las Vegas Hotels

Legionnaires' Disease Outbreak Investigation at Las Vegas Hotels

The Southern Nevada Health District (SNHD) has initiated an investigation into a troubling outbreak of Legionnaires' disease associated with two well-known hotels in Las Vegas. The agency reported on Thursday that it is examining five separate cases, which are believed to be travel-related and not connected to local residents.

Among the identified cases, three visitors had stayed at The Grandview, while two were guests at the South Point Hotel, located adjacent to one another in southern Las Vegas. The reported stays occurred during various months: August, February, and April.

Upon notification of these cases, the health district conducted environmental water sampling at both properties, revealing positive test results for Legionella bacteria, the pathogen responsible for causing Legionnaires' disease. Consequently, officials are taking immediate action to ensure the safety of the water supply at these hotels.

The symptoms of Legionnaires' disease typically manifest within two to ten days following exposure to the bacteria and may include:

• Cough
• Fever
• Headaches
• Shortness of breath
• Muscle aches

Due to the potential risks, the SNHD advises individuals who stayed at The Grandview on or after March 27, 2025, and those at the South Point Hotel on or after April 16, 2025, to vigilantly monitor their health for two weeks after their stay, and report any concerning symptoms to their healthcare providers.

As of now, the investigation reveals that:

• At South Point, one individual stayed in August 2024 and the other in February 2025; both have since recovered.
• The Grandview reported one guest from February and two more from April, with all three requiring hospitalization. As of the latest report, two have recovered and one remains hospitalized.

The health district has underscored that immediate water system remediation efforts are underway at both establishments. They are collaborating closely with the SNHD to ensure public safety and the thoroughness of the investigation.

While many individuals do recover, particular demographics may be at higher risk for severe illness, including:

• Individuals aged 50 and older
• Current and former smokers
• People with chronic lung diseases
• Those with weakened immune systems
• Individuals with underlying health conditions such as diabetes or kidney disease

For those who stayed at either hotel during this period and are exhibiting symptoms, it is crucial to fill out a confidential illness survey and seek help from medical professionals without delay. The health district is providing resources and assistance, urging everyone to prioritize health and safety during this outbreak.

This ongoing investigation highlights the importance of water system safety in hospitality industries and serves as a reminder for travelers to remain vigilant regarding their health during and after their visits.