Also known as shingles
Caused by varicella<unk>  virus (VZV; also known as Human<unk>  Virus 3) causing Varicella (chicken pox) and later<unk>  (shingles)
Virus is dormant in dorsal root ganglion and reactivates causing characteristic vesiculopapular rash in dermatomal distribution
Occurs once immunity to virus declines (elderly, immunosuppressed, post transplant, HIV)
Patient is contagious until lesions are crusted over
Consider varicella-zoster immunoglobulin to immunosupressed, pregnant, neonate contacts<unk>  vaccination if >60
Herpes zoster
Febrile
Smallpox
Diffuse distribution
Measles
Varicella
Erythema infectiosum
Disseminated gonococcal disease