I don't like stories like this. "Study: Nearly half of Water Taps May Contain Bacteria that Causes Legionnaires Disease." Remember the first time we ever heard of Legionnaires Disease? Back in 1976 it was a huge and scary report as many attendees at a national American Legion convention in Philadephia fell ill with this new to most of us illness. Early on 6 men died and 9 others were very sick. In the end it turned out that the total number of cases reached 221, and of those, 34 had died.
There was a massive investigation by the Center for Disease Control which eventually determined that the bacteria was breeding in the cooling tower of the hotel’s air conditioning system of the Bellevue-Stratford Hotel where many convention goers were staying.
It wasn't until nearly a year later that Dr. Joseph McDade made the discovery that a previously identified bacterium was the cause of the outbreak. It had not been considered previously because it was believed to affect only animals. The bacterium was later named Legionella Pneumophila.
Outbreaks of legionellosis have occurred after people have inhaled aerosols that come from a water source (for example, air-conditioning cooling towers, whirlpool spas, or showers) contaminated with Legionellabacteria. People may be exposed to these aerosols in homes, workplaces, hospitals, or public places. Infection cannot be acquired from another person with legionellosis, and there is no evidence of people becoming infected from auto air conditioners or household window air-conditioning units.
It can be treated with several classes of antibiotics. But it is a form of pneumonia and can be tough to treat which makes everyone who takes showers, uses hot tubs etc can now be slightly concerned about all the water faucets that may contain the bacteria.
The thing is at this time of year with everyone battling colds and other bronchial infections, who really knows.