This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology Pa 1 (Gram Positive Cocci, Gram Negative Cocci), Subject name: Microbiology
[{'content': 'Which of the following toxins will produce the condition shown below? \nSelect and explain. \nA. Leukocidin, B. TSST-1, C. ETA and ETB, D. Serum opacity factor', 'role': 'user'}, {'content': "Answer: C \nExplanation: STAPHYLOCOCCAL SCALDED SKIN SYNDROME Induced by epidermolytic exotoxins (exfoliatin) A and B, which are released by S. aureus -detachment within the epidermal layer, by breaking down the desmosomes. Exotoxins cleave desmoglein-1, which holds the granulosum and spinosum layers together, similar to the pathophysiology of the autoimmune skin disease 'pemphigus vulgaris.'", 'role': 'assistant'}]