system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All of the following are true about Chickenpox except:
assistant
The correct answer is  d. Umbilicated vesicles are the earliest lesions to appear(Ref: Nelson 20/e p1580-1581)Initial exanthem in Chicken pox consists of pruritic erythematous macules that evolve through papular stage to form clear, fluid- filled vesicles. Clouding & umbilication of the lesions begin in 24-48 hr.Simultaneous presence of lesions in various stages of evolution is characteristic of varicella.Distribution of rash is predominantly centripetal with greatest concentration on trunk.