Ultraviolet light deactivates the DNA of bacteria, viruses and other pathogens and destroys their ability to multiply and cause disease. Specifically, UV light causes damage to the nucleic acid of microorganisms by forming covalent bonds between certain adjacent bases in the DNA. The formation of such bonds prevents the DNA to reproduce.
Ultraviolet light deactivates the DNA of bacteria, viruses and other pathogens and destroys their ability to multiply and cause disease. Specifically, UV light causes damage to the nucleic acid of microorganisms by forming covalent bonds between certain adjacent bases in the DNA. The formation of such bonds prevents the DNA to reproduce.