VMC-0001
QUESTION
Leptospirosis can be diagnosed serologically by?
OPTIONS
(A) Microscopic agglutination test
(B) DNA probes
(C) ELISA
(D) All of the above
ANSWER
(D) All of the above
EXPLANATION
Leptospirosis can be diagnosed serologically by the microscopic agglutination test (MAT), ELISA, and other antibody-detection methods, while DNA probes can detect Leptospira nucleic acid. Therefore, all three listed methods can contribute to diagnosis, making option D correct; options A, B, and C are individually valid but incomplete because each omits another applicable method.