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': 'Jarisch-Herxheimer reaction is caused by all except- \nSelect and explain. \nA. Syphilis, B. Brucellosis, C. Typhoid Fever, D. Legionellosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: <p> Jarish herxheimer reaction:-Febrile reaction with chills, fever,ahralgia,headache and transient uicaria after treatment for syphilis with antibiotics.This is due to lysis and release of treponemal components in blood.Subsides in few hours.Relieved by aspirin Also seen in brucellosis and typhoid. {Reference: IADVL textbook of dermatology,page 1386', 'role': 'assistant'}]