The Southern Nevada Health District is investigating two cases of Legionnaires’ disease at a resort on the Las Vegas Strip.
The agency said in a Tuesday news release that it is investigating two travel-associated cases of Legionnaires’ disease associated with stays at Wynn Las Vegas.
Health officials said one person stayed at the property in September 2025 while the other stayed in February 2026. Both individuals have since recovered, the release noted.
“Following notification of these cases, the Health District conducted environmental sampling at the facility. Multiple samples tested positive for Legionella, the bacteria that can cause Legionnaires’ disease,” the agency said.
As a result, Wynn Las Vegas began “immediate and comprehensive water system remediation measures, and the most recent samples indicate no detectable levels of Legionella in the affected areas,” according to the news release.
Health officials said Wynn Las Vegas, which is cooperating with the investigation, has initiated direct guest notifications regarding potential exposure.
Legionnaires’ disease symptoms typically begin within two to 10 days after exposure to the bacteria, the agency said, noting that people should watch for symptoms such as cough, shortness of breath, fever, muscle aches and headaches for up to two weeks after exposure.
