This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial infections, Subject name: Dental
[{'content': 'Staphylococcal infection causes all the following skin diseases except:- \nSelect and explain. \nA. Impetigo, B. Erysipelas, C. Ecthyma, D. Scalded skin syndrome', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Erysipelas is caused by streptococcus pyogenes. Skin diseases caused by staphylococcus aureus are: Scalded skin syndrome Cellulitis Impetigo Carbuncles Furuncles Ecthyma', 'role': 'assistant'}]