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: Social & Preventive Medicine
[{'content': 'Types of dengue serotypes are? \nSelect and explain. \nA. 2, B. 4, C. 5, D. 10', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Dengue virus: Arbovirus 4 serotypes Manifestations\n1. Assymptomatic\n2. Dengue fever: √ a.k.a break bone fever √ Incubation period : 3-10 days\n3. Dengue hemmorhgic fever: √ Infection or reinfection with more than one type of dengue virus √ Incubation period :\n4-6 days √ Plasma leakage and hemostasis, hemoconcentration, thrombocytopenia √ Transmitted by bites of aedes aegypti', 'role': 'assistant'}]