Wolf's Isotopic Response: Varicella Within a Prior Immunization Reaction Site.

Wolf's isotopic response describes the occurrence of a dermatologic condition at the site of a prior healed unrelated condition. Our report details a case of varicella occurring as a secondary condition at the site of a prior immunization reaction; herpesvirus infection has not been reported as a secondary condition in cases of Wolf's isotopic response before. Current hypotheses favor the involvement of neurohormonal modulation of local immunity in response to various forms of injury as a model for explaining these phenomena.