The history of ultraviolet germicidal irradiation for air disinfection.
Public health concerns such as multi- and extensive drug-resistant tuberculosis, bioterrorism, pandemic influenza, and severe acute respiratory syndrome have intensified efforts to prevent transmission of infections that are completely or partially airborne using environmental controls. One such control, ultraviolet germicidal irradiation (UVGI), has received renewed interest after decades of underutilization and neglect. With renewed interest, however, come renewed questions, especially regarding efficacy and safety. There is a long history of investigations concluding that, if used properly, UVGI can be safe and highly effective in disinfecting the air, thereby preventing transmission of a variety of airborne infections. Despite this long history, many infection control professionals are not familiar with the history of UVGI and how it has, and has not, been used safely and effectively. This article reviews that history of UVGI for air disinfection, starting with its biological basis, moving to its application in the real world, and ending with its current status.
Reed
Nicholas G
NG
U.S. Army Center for Health Promotion and Preventive Medicine, Laser/Optical Radiation Program, Aberdeen Proving Ground, MD, USA. nick.g.reed@us.army.mil
D000391:Air Microbiology; D018562:Disease Transmission, Infectious / Q000266:history / Q000517:prevention & control; D004203:Disinfection / Q000266:history* / Q000295:instrumentation / Q000379:methods*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D017053:Infection Control / Q000266:history* / Q000379:methods*; D014466:Ultraviolet Rays; D014871:Water Microbiology
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