This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Social & Preventive Medicine
[{'content': 'A patient with clustered, white lesions on the buccal mucosa (opposite the upper 1st & 2nd molars) pathognomonic for measles. These are:- \nSelect and explain. \nA. Leukoplakia, B. Koplik spots, C. Kaposi spots, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Koplik spots - These are white lesions on buccal mucosa opposite the first and second lower molars. They are small, bluish-white spots on a red base, smaller than the head of a pin It is pathognomonic of measles. Measles- Causative organism - RNA paramyxovirus Incubation period - 10-14 days Pathognomic c/f - Koplik spots Clinical feature- retroauricular origin of rash M/c complication- serous otitis media', 'role': 'assistant'}]