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': 'Most specific for Dengue diagnosis? \nSelect and explain. \nA. IgM ELISA, B. Tissue culture, C. CFT, D. Electron microscopy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans (a) IglYI ELISA Lapoi awry wagnosis of Dengue Thrombocytopenia (100,000/mm3 or less) Hemoconcentration: Hematocrit increased by 20% or more of base line value Elevation of serum Aminotransferase ( +) Antigen detection ELISA or PCR or virus isolation in acute phase IgM ELISA or paired serology during recovery Strip immunochromatographic test of IgM for rapid diagnosis Remember: IgM appears within 2-5 days of onset of illness and persists for one to three months.', 'role': 'assistant'}]