This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology Pa-2 (RNA Virus Pa-1,2 & Miscellaneous Viruses), Subject name: Microbiology
[{'content': 'Quarantine period for yellow fever is: \nSelect and explain. \nA. 1 day, B. 2 days, C. 6 days, D. 10 days.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Quarantine period for Yellow fever 6 days Option 1, 2, 3, 4 Measures for the travelers taken at the international airpos in India: Unvaccinated travelers coming from yellow fever endemic zone to India will be kept in quarantine for 6 days Breteau index (for larval monitoring) or the Aedes aegypti index should be less than one; surrounding 400 metres of airpo. (Breteau index (BI): Number of positive containers for Aedes x 100 / Number of houses inspected.)', 'role': 'assistant'}]