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December 12, 2010

Ultraviolet Device Effective in Reducing Pathogens in Hospital Rooms

Automated ultraviolet devices can significantly reduce pathogens in hospital patient rooms, according study conducted at the University of North Carolina Health Care, US. Researchers used an automated UV device, Tru-D, to decontaminate patient rooms contaminated with MRSA, vancomycin-r

By cms admin

Automated ultraviolet devices can significantly reduce pathogens in hospital patient rooms, according study conducted at the University of North Carolina Health Care, US.

Researchers used an automated UV device, Tru-D, to decontaminate patient rooms contaminated with MRSA, vancomycin-resistant enterococcus, Clostridium difficile and a multi-drug resistant strain of Acinetobacter baumannii.

During the first phase of the trial, samples of MRSA, vancomycin-resistant enterococcus, Acinetobacter baumannii, and Clostridium difficile were placed behind objects and within line-of-sight of the ultraviolet device.

The results revealed that the ultraviolet device reduced vegetative bacteria counts by more than 99.9% within 15 minutes, and reduced the Clostridium difficile spore counts by 99.8% within 50 minutes.

In the second phase of the trial, isolation rooms for patients with MRSA or vancomycin-resistant enterococcus were tested using the device.

After 15 minutes of ultraviolet-device exposure, there was a significant decrease in the total number of colony-forming units (384 vs 19), positive MRSA samples (81 vs two) and MRSA counts per plate (37 vs two). Similar reductions were observed for vancomycin-resistant enterococcus.

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