Six guests who stayed at the Las Vegas Aria Resort & Casino in the last month have contracted Legionnaires’ disease, a pneumonia-like bacterial infection that can become serious if left untreated. Hotel officials say they detected high levels of Legionella, the bacteria that causes Legionnaires’ disease, in the water supply from June 21 through July 4. All six guests have recovered, but the casino is warning its guests that they may have been exposed. This isn’t the first time Aria has has had its guests reporting the disease — it happened back in the spring of 2010, too.

Holding a martini glass and surrounded by cleavage-baring showgirls, Las Vegas Mayor Oscar Goodman called the Cleveland Clinic’s Lou Ruvo Center for Brain Health “the most important building in the history of Southern Nevada” during his final state-of-the-city address.

Diabetes Sentry Products Inc. beat out 400 other startups across the country to win the best pitch competition at the The PerfectBusiness Entrepreneur & Investor Conference in Las Vegas. The company, based in Orono, Minnesota, is trying to raise $1 million to $1.5 million to develop a portable device that alerts diabetic patients when their blood sugar levels fall dangerously low.

What happens in Las Vegas doesn’t just stay in Las Vegas — it guides some of what happens in Cleveland and elsewhere, when it comes to the Cleveland Clinic Lou Ruvo Center for Brain Health.

A dwindling drug pipeline, the national obesity and personal responsibilty debate, and a lot of economic development news topped the week at MedCity News.

Las Vegas city officials gave the go-ahead on Wednesday to a development plan that is the first step in building a new Cleveland Clinic medical campus there.

Las Vegas could on Wednesday take the first of a several steps with Cleveland Clinic to build a larger health-care presence in that city. Las Vegas officials think there are scores of global medical tourists and hometown high rollers who would come specifically to a high-end health care center. And the hospital itself would be nestled next to a 2,000-seat performing arts center home to Navada’s ballet troupe and the city’s philharmonic; a toney residential development; a jewelry retail and trade center, and a 1,000-room hotel and casino run by the Clinic’s Cleveland neighbor, Forest City. Who wouldn’t want to move there?

The expansion would surround the Clinic’s Lou Ruvo Center for Brain Health, a cutting-edged neurological treatment and research center that opened in July. And this development application continues the Clinic’s roughly five-year flirtation with building a significant presence in Las Vegas.

The Cleveland Clinic Lou Ruvo Center for Brain Health will accept its first patients today. The Clinic will staff and manage the $100 million center that seeks to prevent the chronic symptoms of disabling brain diseases and to prolong healthy aging among people who are at risk for cognitive disorders or dementia.

Cleveland Clinic will expand into Las Vegas courtesy of a $100 million donation of the Frank Gehry designed Lou Ruvo Brain Institute. Ruvo is presenting the building as a gift to the Clinic, which will then operate the facility in Las Vegas. The center fights diseases including Alzheimer’s and Parkinson’s through both research and treatment.