This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lab Investigations, Subject name: Microbiology
[{'content': 'Diagnostic method of choice for leptospirosis: \nSelect and explain. \nA. Cold agglutination test, B. MSAT, C. MAT, D. Latex agglutination test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cold agglutination test- Mycoplasma pneumoniae Microscopic agglutination test- Leptospira Latex agglutination test can be used to identify and type several organisms The microscopic agglutination test (MAT) is the gold standard for sero-diagnosis of leptospirosis because of its unsurpassed diagnostic specificity. It uses panels of live leptospires, ideally recent isolates, representing the circulating serovars from the area where the patient became infected.', 'role': 'assistant'}]