This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'False statement about impetigo – \nSelect and explain. \nA. Mostly caused by staphylococcus or streptococcus or both, B. It predisposes to glomerulonephritis, C. Produces scar on healing, D. Erythromycin is drug of choice', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Impetigo is a highly contagious\xa0(infectious) Gram-positive bacterial infection of the superficial layer of the epidermis. It occurs in two forms :-\n\n\nImpetigo contagiosa (Non-bullous) → Caused by both staph aureus & streptococcus (group `A )\nBullous impetigo Caused by Staph.aureus.\n\n\nLesions of Impetigo contagiosa heal without scarring.\nFor treatment of Impetigo contagiosa, Systemic Erythromycin is given to cover and Staphylococcus Streptococcus.\xa0\nGlomerulonephritis may occur after streptococcal skin (e.g. impetigo, ecthyma) or throat infection, whereas rheumatic fever can develop only after throat infection (not skin infection). Therefore, Impetigo can cause glomerulonephritis but not rheumatic fever.', 'role': 'assistant'}]