Varicella Zoster Virus Infection: Clinical Features, Molecular Pathogenesis, Treatment, and Prevention

Area of Science:

• Virology
• Immunology
• Epidemiology

Background:

• Varicella zoster virus (VZV) establishes lifelong latency, with reactivation causing herpes zoster (HZ).
• HZ incidence rises with age and immunosuppression, leading to significant clinical burdens including postherpetic neuralgia and neurological complications.
• Current interventions often target isolated disease stages, with incomplete translation of molecular insights into comprehensive clinical strategies.

Purpose of the Study:

• To synthesize current knowledge on VZV epidemiology, life cycle, and pathogenesis.
• To provide an integrated overview of HZ clinical manifestations, latency, reactivation, and immune evasion.
• To discuss advances in diagnostics, therapeutics, and prevention for HZ.

Main Methods:

• Literature review synthesizing current knowledge on VZV.
• Integrated overview of clinical manifestations and molecular pathogenesis.
• Summary of diagnostic technologies, therapeutic strategies, and preventive approaches.

Main Results:

• VZV reactivation leading to HZ involves complex interplay between viral factors, host immunity, and neuronal injury.
• Advances in antivirals and vaccines exist, but comprehensive strategies are incomplete.
• Key challenges and emerging directions for HZ management are identified.

Conclusions:

• Effective HZ prevention and treatment require linking disease mechanisms with clinical management.
• Translating fundamental discoveries into clinical practice is crucial for improving patient outcomes.
• Further research is needed to develop more effective interventions for VZV and HZ.