Can UV disinfection kill the influenza virus?
Jan 15, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Under normal circumstances, ultraviolet (UV) disinfection can usually kill the influenza virus. UV light is a commonly used disinfection method that effectively inactivates various microorganisms, including bacterial vegetative cells, bacterial spores, Mycobacterium tuberculosis, fungi, viruses, and rickettsiae. The influenza virus is sensitive to UV light, which primarily acts on the virus's nucleic acid, affecting proteins and thereby inactivating the virus.
Under normal circumstances, ultraviolet (UV) disinfection can usually kill the influenza virus. A detailed analysis is as follows:
UV radiation is a commonly used disinfection method that can effectively kill various microorganisms, including bacterial vegetative cells, bacterial spores, Mycobacterium tuberculosis, fungi, viruses, and rickettsiae. The influenza virus is sensitive to UV light, which primarily acts on the virus's nucleic acid, affecting proteins and thereby inactivating the virus.
Ultraviolet light is categorized into short-wave UV (also known as UVC) and far-UVC. Among these, short-wave UV has strong germicidal properties but may pose certain risks to human health. In contrast, far-UVC is relatively safe. Continuous low-dose application of far-UVC can effectively kill airborne influenza viruses without causing any damage to human organs or tissues, thus it is more widely used.
When using UV lamps for disinfection, ensure that the room is unoccupied and all doors and windows are closed. The irradiation time should be at least 30 minutes. After disinfection, promptly open the windows for ventilation. Additionally, when using UV lamps, avoid direct exposure of the eyes and skin to UV radiation, as it may affect vision or cause symptoms such as redness and itching of the skin.
