Hospital Wanderer

Study results showed Legionella bacteria levels between 0 and 3,000 bacterial colony forming units per milliliter of water from newly installed, electronic hands-free faucets at The Johns Hopkins Hospital, which is in fact all equipped with the latest electronic-eye sensors to automatically detect hands and dispense preset amounts of water. The study further shows that these faucets were more likely to be contaminated with one of the most common and hazardous bacteria in hospitals compared to old-style fixtures with separate handles for hot and cold water.

What is Legionella bacteria, anyway?

According to Mr. Wiki, Legionella acquired its name after a July, 1976 outbreak of a then-unknown "mystery disease" sickened 221 persons, causing 34 deaths. The outbreak was first noticed among people attending a convention of the American Legion – a congressionally chartered association of U.S. military veterans. Over 90% of legionellosis cases are caused by Legionella pneumophila, a ubiquitous aquatic organism that thrives in temperatures between 25 and 45 °C (77 and 113 °F), with an optimum around 35 °C (95 °F). It takes two distinct forms:

• Legionnaires' disease, also known as "Legion Fever", is the more severe form of the infection and produces pneumonia.
• Pontiac fever is caused by the same bacterium but produces a milder respiratory illness without pneumonia that resembles acute influenza.

For more info, read this article ; Hands-Free Electronic Water Faucets Found to be a Hindrance in Hospital Infection Control or look for the nearest doctors in scrub uniforms near your place.