Varicella-zoster virus (VZV) causes both varicella (chickenpox) and zoster (shingles). VZV is a member of the herpesvirus family, closely related but distinct from herpes simplex virus. Symptoms include a rash composed of small blisters that are intensely itchy and also fever, loss of appetite, and fatigue.
New shipping package for VARIVAX from Merck Vaccines (replacing the use of dry ice with 6 refrigerant packs)