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
A 10-month-old girl is brought to the physician because of a 4-day history of irritability and a rash. Her temperature is 37.7°C (99.9°F). Examination of the skin shows flaccid, transparent blisters and brown crusts on her chest and upper extremities. Application of a shear force to normal skin causes sloughing. Which of the following is the most likely underlying cause of this patient's condition?
assistant
Exfoliative toxin A release