Herpes simplex virus type-1 (HSV-1) is known to cause lifelong infections in humans. First infection is characterized by gingiva-stomatitis and pharyngitis, while virus reactivation causes recurrent herpes labialis with ulcerations on intraoral mucosa, mouth or external facial skin [1]. Laser therapy (LT), set at red and infrared wavelengths, has been reported as able to reduce HSV-1 recurrence and duration of herpetic sores [2]. Despite the blue wavelength already showed its efficacy in killing different strains of bacteria, it has never been tested on viruses [3].
Keywords: HSV-1; blue laser therapy; infection.
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