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Recurrent intraoral herpes simplex virus infection
International Journal of Oral and Maxillofacial Surgery
|August 1, 1986
Summary
This study confirms that the same herpes simplex virus type 1 (HSV-1) caused both the initial and recurring oral herpes infections in a patient. DNA analysis of viral isolates from different lesion stages identified a single HSV-1 strain.
Area of Science:
- Oral medicine
- Virology
- Molecular biology
Background:
- Recurrent oral herpes simplex virus (HSV) infections are common, but the precise viral etiology linking primary and subsequent episodes requires detailed molecular investigation.
- Understanding the genetic relatedness of HSV isolates from primary and recurrent lesions is crucial for managing oral herpes disease.
Observation:
- A 48-year-old female presented with primary herpetic gingivostomatitis and subsequent recurrent intraoral HSV disease.
- HSV isolates were collected from both primary and recurrent oral lesions for molecular analysis.
Findings:
- Restriction endonuclease cleavage analysis using BamHI, KpnI, and SalI enzymes was performed on viral DNA from both lesion types.
- The resulting DNA cleavage patterns were highly similar, definitively identifying the causative agent as herpes simplex virus type 1 (HSV-1).
Implications:
- These findings demonstrate that the same HSV-1 strain is responsible for both the initial and recurrent intraoral herpes episodes in this patient.
- This molecular confirmation supports the concept of viral latency and reactivation as the mechanism for recurrent oral herpes.
- The study underscores the utility of restriction endonuclease analysis in differentiating and tracking viral strains in clinical settings.