Health Care

Deposition of Bacteria and Bacterial Spores by Bathroom Hot-Air Hand Dryers

Deposition of Bacteria and Bacterial Spores by Bathroom Hot-Air Hand Dryers”

The hand dryers tested did not have air quality filters. That's the word, but a new study by University of CT scientists finds they spread fecal matter onto people's hands, CNET reports. "The more bacteria stick", the study's author Peter Setlow told Business Insider. Retrofitting hand dryers with HEPA filters reduced bacterial deposition by hand dryers ∼4-fold, and potential human pathogens were recovered from plates exposed to hand dryer air whether or not a HEPA filter was present and from bathroom air moved by a small fan. The results were published this month in the journal Applied and Environmental Microbiology.

A new study has found a dirty little secret about hand dryers found in many public restrooms. The simple movement of lots of people in and out of the bathroom, shedding microbes from their skin, he said, adds to the messy picture.

The research adds to a growing body of evidence showing that hot-air hand dryers have a role in the spread of bacteria-safe and potentially unsafe.

For the study, a Connecticut-based team looked at 36 bathrooms at facility of the University of Connecticut School of Medicine, Newsweek notes, where one lab produces large amounts of spores of PS533, a specific but harmless strain of bacteria Bacillus subtilis. So, in the brief moments your hands rest below the nozzle, they'll be exposed to far more air than usual-and far more bacteria. Researchers say the machines, which are created to blow hot air on you, are actually sucking up feces particles and spraying them onto your hands. That's because bathroom bacteria comes from feces and gets "aerosolized" when toilets are flushed, especially with the lid down, Setlow explains. Spore-forming colonies, identified as B. subtilis PS533, averaged ∼2.5 to 5% of bacteria deposited by hand dryers throughout the basic research areas examined regardless of distance from the spore-forming laboratory, and these were nearly certainly deposited as spores.



Like this

loading...
loading...

Latest


14 April 2018
Vail Resorts Inc (NYSE:MTN) Institutional Investor Sentiment Is 1.75
The company reported ($1.70) earnings per share for the quarter, missing the consensus estimate of ($1.57) by $0.13. Elkfork Partners LLC bought a new stake in shares of Vail Resorts in the 4th quarter worth approximately $121,000.

14 April 2018
Russian helicopter crashes in Baltic Sea, both pilots dead - Baltic Fleet
The helicopter went missing when performing a night training flight at 23.30 Moscow Time on April 13. The weather conditions were simple enough for the flight, the press service said.

14 April 2018
Bizarre: Official drives for 4 km as man clings on to bonnet
Brij Pal could very well have lost his life because of Pankaj Kumar Gautam's actions and disregard for the law. The victim kept hanging onto the bonnet until the officer chose to stop after driving for four kilometers.

14 April 2018
Melco Resorts & Entertainment Limited
By hitting $30.83 price per share a new one-year high was achieved by the Melco Resorts & Entertainment Limited (NASDAQ: MLCO ). The stock, as of last close, traded 59.30% away to its 52 week low and was at a distance of 2.20% from its 52 week high.

14 April 2018
Putin condemns US-led strike on Syria as aggression
He reaffirmed Russia's view that a purported chemical attack in the Syrian town of Douma that prompted the strike was a fake. Australia's defense minister issued a statement supporting the airstrikes , calling them "calibrated and proportionate".

14 April 2018
Dara Bazzano Sells 6860 Shares of Gap Inc (GPS) Stock
The apparel retailer reported $0.61 earnings per share for the quarter, topping the Zacks' consensus estimate of $0.58 by $0.03. Following the completion of the sale, the insider now owns 2,319,396 shares of the company's stock, valued at $79,856,804.28.

14 April 2018
Android Auto now works without wires if you have the right hardware
Alas, there's a catch: To get it all working wirelessly at this point, you'll need to have some pretty specific gear. You don't need to take your phone out of your pocket or plug it in; it automatically connects over Wi-Fi.

14 April 2018
Syria forces enter Douma for clean-up operations after missile strikes
A day earlier, French President Emmanuel Macron said his country had proof that the Syrian government launched the gas attacks. He added that Washington seems determined to take military action in Syria and this is risky .

14 April 2018
USA 'has no moral right to blame other countries' - Russian Federation
Both local lawmakers and Syrians are reacting Friday night to President Donald Trump's announcement of strikes in Syria. Secretary-General Antonio Guterres said Friday the first team was already in Syria and a second was expected soon.

14 April 2018
On April, 27 Sanofi (SNY) EPS Estimated At $0.84
Barclays downgraded Sanofi from an "equal weight" rating to an "underweight" rating in a research note on Tuesday, January 23rd. The firm has "Hold" rating given on Wednesday, August 30 by HSBC. 48,344 shares were sold by Petno Douglas B, worth $5.43M.