Varicella zoster virus

Varicella zoster virus, also known as human herpesvirus 3, is one of nine known herpesviruses that can infect humans. It causes chickenpox, commonly affecting children and young adults, and shingles in adults, though shingles is rare in children. As a late complication of infection, Ramsay Hunt syndrome type 2 can develop in rare cases. The virus is species-specific to humans and can survive in external environments for only a few hours. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/