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This booklet has been written to help infection preventionists, environmental services staff and healthcare cleaning professionals understand how UV-C delivered by a UVD Robot can rapidly kill priority pathogens typically found in hospitals and other healthcare environments.

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Click here for the complete guide.

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Our partners from Dimer have developed some educational materials for understanding the basics of UVC surface disinfection.​

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Click on the links below for the complete files.

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• UVC Surface Disinfection - Basics

• CDC Update: Guidelines Regarding Surface Disinfection

• Stationary vs. Dynamic UV
  Applications

• How The Canyon Wall Effect Limits Traditional UVC Disinfection Efficacy 

The Health Europa Quarterly digital publication brings together a variety of voices in the healthcare arena to highlight the latest trends and most cutting-edge developments in European health and healthcare research and policy.

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Health Europa Quarterly Issue 19 from November 2021 comprehensively investigates the current health landscape, from combatting COVID-19 and tackling healthcare inequalities to women’s health and technological medical innovations.

 

Click here for Key Aspects to Consider when Purchasing UVC Disinfection Products.

 

Click here for the full publication.

Abstract: SARS-CoV-2 is frequently transmitted by aerosol, and the sterilization of the virus in airflows has numerous potential applications. We evaluated a UV-C illuminator similar to what might be incorporated into tubing of a mechanical ventilator for its ability to block transmission of the airborne virus from infected to naïve hamsters. Hamsters protected by the UV system were consistently protected from infection, whereas non-protected hamsters uniformly became infected and displayed virus shedding and high burdens of virus in respiratory tissues. The efficiency and speed with which the virus in flowing air was inactivated using this system suggests several applications for mitigating transmission of this virus.

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Click on the picture to read the full report.

Gabriele Messina and Gabriele Cevenini of the University of Siena explore the emergence and efficacy of UVC disinfection technologies.

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The onset of the COVID-19 pandemic brought with it an unprecedented flurry of new disinfection technologies, most notably those using UVC. For over 10 years, the University of Siena’s Gabriele Messina and Gabriele Cevenini have been collaborating synergistically in research activities focused on the engineering of disinfection techniques with classical (lamps) and innovative (chips and LEDs) UV sources. Click here to read their interview with Health Europa where they speak about the upsurge in UVC disinfection devices and consider some of the key advantages and limitations of these emerging innovations.

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The UVD robotic device was placed in a room containing two boards to create shadowed areas. The robot moved in front, between and behind the boards covering all areas of shadowing. Coupons containing a preset number of organisms were placed in container in two chosen positions with differing levels of shadowing and exposed for different time periods. The numbers of organisms remaining after the test period were counted and compared to the control and log reduction calculated. The UVD Robot effected a greater than four log reduction within three minutes. Acinetobacter baumanni showed a greater than 6 and 7 log reduction (respectively) within three minutes.

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Click here for the full report.

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Stainless steel coupons containing approximately 105 colony forming units (cfu/ml) of Candida auris DSM 21092 (dried) were placed on a surface. They were exposed to UV-C emitted by a UVD Robot for different time periods ranging from 10 minutes to 30 minutes. The numbers of organisms remaining were calculated compared to control coupons which were placed in exactly the same positions but were shielded from the UV by tin foil. The numbers of organisms remaining after the test period were counted and compared to the control and log reduction calculated.

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Click here for the full report.

SUMMARY:

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The UVD robotic device was placed in a room containing two boards to create shadowed areas. The robot moved in front, between and behind the boards covering all areas of shadowing. Coupons containing a preset number of organisms were placed in container in two chosen positions with differing levels of shadowing and exposed for different time periods. The numbers of organisms remaining after the test period were counted and compared to the control and log reduction calculated. The UVD Robot effected a greater than 4 log reduction on Clostridium difficile spores within five minutes.

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Click here for the full report.

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Stainless steel coupons containing approximately 108 colony forming units (cfu) of Klebsiella pneumoniae (carbapenemase producing NDM-1 - CPE) (dried) were placed on a surface. They were exposed to UV-C emitted by a UVD robot for different time periods ranging from less than 10 seconds (drive by) up to three minutes stationary. The numbers of organisms remaining were calculated compared to control coupons, which were placed in exactly the same positions but were shielded from the UV-C by tin foil. The numbers of organisms remaining after the test period were counted and compared to the control and the log reduction calculated. 

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Click here for the full report.

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Here, authors describe the inactivation of SARS-CoV-2 in both wet and dry format using radiation generated by a commercially available Signify ultraviolet (UV)-C light source at 254 nm. They show that for contaminated surfaces, only seconds of exposure is required for complete inactivation, allowing for easy implementation in decontamination workows.

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Click here for the full report.

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Presentation by Professor Val Edwards-Jones

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Emeritus Professor of Medical Microbiology, Manchester Metropolitan University

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Click here for the full presentation.