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
Diagnostic method of choice for leptospirosis: 
Select and explain. 
A. Cold agglutination test, B. MSAT, C. MAT, D. Latex agglutination test
C: MAT
Answer: C: MAT 
Explanation: 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.