This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Following are true of kyasanur forest disease except - \nSelect and explain. \nA. Transmitted by soft tick, B. Caused by retrovirus, C. Incubation Period is 3-8 days, D. Killed vaccine available', 'role': 'user'}, {'content': "Answer: B \nExplanation: TFD is caused by tick-borne virus coming under Flaviviridae. Infection is transmitted by ticks. REF:ANATHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:524", 'role': 'assistant'}]