Shingles
Other namesZoster, herpes zoster, zona
SpecialtyDermatology
SymptomsPainful rash occurring in a stripe
ComplicationsPostherpetic neuralgia
Duration2–4 weeks
CausesVaricella zoster virus (VZV)
Risk factorsOld age, poor immune function, having had chickenpox before 18 months of age
Diagnostic methodBased on symptoms
Differential diagnosisHerpes simplex, angina, insect bites
PreventionShingles vaccine
MedicationAciclovir (if given early), pain medication
Frequency33% (at some point)
Deaths6,400 (with chickenpox)