• Herpes zoster (shingles) is caused by the reactivation of varicella-zoster virus (VZV) and can be prevented with Shingrix vaccine.
• Herpes zoster is hard to diagnose in children and younger adults, especially if the clinical presentation is mild.
• Older adults and people who are immunocompromised are at high risk for shingles complications.
• Cause of Shingles: Primary infection with VZV causes varicella. After a person has varicella, the virus remains dormant in the dorsal root ganglia. VZV can reactivate later in a person’s life.”

Center for Disease Control and Prevention – CDC (Clinical Overview of Shingles (Herpes Zoster) | Shingles (Herpes Zoster) | CDC)