A recent study by an independent lab demonstrates the Vioguard keyboard’s ability to eradicate 97-99% of Clostridium difficile (C. diff) spores. While many UV-C products reach this rate in 30-50 minutes against this particular bug, the keyboard does it in 90 seconds.

The surface of the keyboard was tested clinically extreme standards, meaning 1.15x10^6 CFU/mL of C.diff spores were spread on the surface of the keyboard, which is a great deal more potent than the average hospital keyboard would typically see.

C. diff spores collect on hospital surfaces like bed rails, tools and keyboards.

Roger Pangan, Director of Operations for Vioguard said “This study tests the limits of our system with its normal 90 second cycle, but to the most extreme degree. That is why this test was done at such a high level of C. diff spores.”

The lab tested the keyboards using a membrane filtration system. The first step of the process is to produce the C. diff samples that are to be used for the smear. Lab technicians take samples of the bacteria that is in a vegetative state. Then, C. diff spores are created in an anabolic chamber over a 24 to 48-hour period.

The Vioguard keyboard has the ability to kill C .diff off its surface.

Once created, the colony forming units are combined with a bovine serum solution with the concentration adjusted to exactly 1.15x10^6 CFU/mL. The C. diff solution is then placed on the surface of the keyboard with a syringe onto five specific sites. The device is allowed to dry completely. These steps are all taken inside the anabolic chamber to ensure the C. diff is in its most concentrated form and has no chance to deteriorate before the UV-C lights work to break them down.

C. diff is placed on five specific sites on the keyboard.

Technicians run the Vioguard keyboard through its normal 90 second cycle. This is where the membrane filtration system comes in. Swabs are taken around the entirety of the device and tested for their reduction amounts. The overall result from this study was a 98.3% reduction.

Mark Beeston, Director of Sales and Marketing at Vioguard said, “this study is important because C. diff is such a high priority for hospitals to manage and control. It is highly contagious, difficult to resolve and becoming increasingly prevalent.”

How does eliminating the spread of C .diff on a keyboard help stop its spread? It is true, bacteria can spread to essentially any surface of a hospital room via cross-contamination. However, many of those surfaces are changed or wiped down. Bed linens, tools, curtains and even beds are cleansed or replaced on a regular basis. But what about keyboards? They are incredibly difficult to clean and for HIPPA reasons, many times only healthcare workers are allowed to use and clean them, not a cleaning crew. While keyboard cleaning protocols are sometimes followed, hospitals are finding that chemical methods not very effective, especially against C. diff.

While items like bed linens are often changed, keyboards are not.

The Centers for Disease Control and Prevention (CDC) has funded studies showing the effectiveness of UV-C devices in combating C. diff. These bacteria are particularly tough to eradicate, especially with chemical cleaners alone.

“UV-C light is a turning point in disinfection technology,” Beeston said. “It has the ability to fight against resistant bacteria that have become out of control. It is a solution that eliminates infections like C. diff to a point that can’t even be touched by chemical cleaning methods.”

To view the entire C.diff study, click here.

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