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: Ophthalmology
[{'content': 'Epidemic conjunctivitis is repoed in a rural area. What is the most probable causative organism? \nSelect and explain. \nA. Adenovirus, B. Herpes virus, C. EB virus, D. Papilloma virus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Adenovirus infection is often associated with pharyngitis, a follicular reaction and injection of the palpebral conjunctiva, and preauricular adenopathy (pharyngoconjunctival fever). Epidemics of adenoviral keratoconjunctivitis occur. Ref: Braverman R.S. (2012). Chapter 16. Eye. In W.W. Hay, Jr., M.J. Levin, R.R. Deterding, J.J. Ross, J.M. Sondheimer (Eds), CURRENT Diagnosis & Treatment: Pediatrics, 21e.', 'role': 'assistant'}]