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: Microbiology
[{'content': 'Stage in which disease is easily recognized and high titre of antibodies are found: \nSelect and explain. \nA. Prodromal stage., B. Fastigium, C. Defervescence stage, D. Convalescence', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Incubation: This period elapsed from invasion of the tissue by pathogens and appearance of clinical features\nProdromal stages: Signs and symptoms are not specific for disease. Antibody titre is rising\nFastigium: Disease is easily recognized. In this phase high titres (Peak) of antibodies are found\nDefervescence stage: Body defense mechanisms dominate and patient feels better\nConvalescence (recovery stage): In convalescence the antibody titres decrease. The patients may act as carrier also', 'role': 'assistant'}]