The Aria Resort & Casino in the tony CityCenter of Las Vegas is advising recent guests about possible exposure to Legionnaires' disease during their stay, according to a letter posted on the hotel-casino's website.
The patients were successfully treated and have fully recovered, said Stephanie Bethel of the Southern Nevada Heath District, which was notified of the cases by the CDC.
Aria's letter tells guests who stayed from June 21 to July 4 that they may have been exposed to the Legionella bacteria, which spreads the disease. The hotel says water tests detected "elevated levels" of the bacteria in several guest rooms" -- a problem it says has been remedied.
The Aria advises any guests concerned about the outbreak to call (877) 326-2742.
The CDC lists initial symptoms of Legionnaires' disease, which can be fatal, as high fever, chills, fatigue and a cough that begins two to 14 days after exposure.