This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pediatrics
[{'content': 'Child with generalized petechiae. CSF shows gram negative diplococci. Treatment \nSelect and explain. \nA. IV Ceftriaxone, B. IV Penicillin G, C. IV Cefotaxine, D. IV Penicillin V', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most patients (70-80%) presenting with fever and petechiae have defined or presumed viral infections, which are often caused by enteroviruses or adenovirus. Parvovirus B19 may also be responsible for many cases of fever and generalized petechiae inchildren. Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]