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Official websites use. Share sensitive information only on official, secure websites. Author for correspondence: Tel. This review discusses the potential of ultraviolet C UVC irradiation as an alternative approach to current methods used to treat localized infections. It has been reported that multidrug-resistant microorganisms are equally sensitive to UVC irradiation as their wild-type counterparts.
With appropriate doses, UVC may selectively inactivate microorganisms while preserving viability of mammalian cells and, moreover, is reported to promote wound healing. In summary, UVC should be investigated as an alternative approach to current methods used to treat localized infections, especially those caused by multidrug-resistant microorganisms. UVC should be used in a manner such that the side effects would be minimized and resistance of microorganisms to UVC would be avoided.
Keywords: antibiotic resistance, bacteria, DNA repair, fungi, localized infections, mammalian cells, resistance to UVC, ultraviolet C irradiation, wound healing, wound infection. The prevalence of infectious diseases caused by multidrug-resistant microorganisms is relentlessly increasing worldwide owing to the excessive use of antibiotics [ 1 ].
Recently, a dangerous new mutation named NDM-1 [ 2 ] that makes some bacteria resistant to almost all antibiotics has been found in the USA in patients with urinary tract infections [ 3 ]. Antibiotic resistance has led to a major research effort to find alternative antimicrobial approaches to which, it is hypothesized, microorganisms will not be easily able to develop resistance.
The mechanism of UVC inactivation of microorganisms is to damage the genetic material in the nucleus of the cell or nucleic acids in the virus [ 5 ]. The UVC spectrum, especially the range of β nm, is strongly absorbed by the nucleic acids of a microorganism and, therefore, is the most lethal range of wavelengths for microorganisms.