GUV Technology Reduces Respiratory Infections in Aged Care
Respiratory viral infections pose a significant health risk, leading to hospitalizations and deaths, particularly among residents in long-term aged care facilities. This vulnerability is attributed to advanced age and the ease of pathogen spread in communal environments. The COVID-19 pandemic underscored this issue, with a high proportion of deaths occurring in Australians aged over 65, and residential aged care facilities experiencing substantial mortality rates despite infection control efforts.
Addressing Transmission Gaps
Existing infection control measures, such as masks and physical distancing, primarily target transmission via large cough droplets. However, airborne transmission through infective aerosols, which remain suspended in the air for longer periods, has largely been unaddressed despite its recognized importance in indoor settings.
The Role of Germicidal Ultraviolet Light
Germicidal ultraviolet (GUV) light technology offers a potential solution by rendering airborne viruses non-infectious through damage to their nucleic acids. While laboratory studies have demonstrated GUV's effectiveness against various respiratory viruses, real-world evidence for its protective capacity in vulnerable populations like those in aged care was previously limited.
Clinical Trial Findings
A two-year randomized cluster-controlled clinical trial was conducted in residential aged care facilities across South Australia. The study aimed to assess whether deploying commercially available GUV appliances in communal areas (e.g., dining rooms, corridors, lounges) could reduce symptomatic respiratory infection rates. A crossover design was implemented, where facility zones alternated between