Question

Match List I with List II

Choose the correct answer from the options given below:

• A. A - II, B - III, C - IV, D - I
• B. A - IV, B - II, C - I, D - III
• C. A - IV, B - III, C - II, D - I
• D. A - III, B - II, C - I, D - IV

Hint:

Parasite Diagnostic Tests:
Sabin-Feldman Dye Test = Toxoplasmosis
Knott's Technique = Filariosis
Capillary Tube Agglutination = Anaplasmosis
Animal Inoculation = Trypanosomiasis (Surra).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Specialized diagnostic serological and parasitological laboratory techniques for protozoan and rickettsial diseases.

Step 2: Detailed Explanation:
Matching diagnostic tests in List I with target parasitic diseases in List II:
- A. Sabin-Feldman Dye Test: Gold standard serological test for IV. Toxoplasmosis (live T. gondii tachyzoites lose methylene blue staining when neutralized by specific antibody + complement).
- B. Knott's Technique: Concentration centrifugation method for detecting circulating microfilariae in III. Filariosis (Dirofilaria immitis).
- C. Capillary Tube Agglutination (CA test): Rapid serological agglutination assay for II. Anaplasmosis (Anaplasma marginale).
- D. Animal Inoculation Test (Biological Test): Diagnostic inoculation into mice/rats/guinea pigs for subpatent I. Trypanosomiasis (Trypanosoma evansi Surra).
Matching sequence: A - IV, B - III, C - II, D - I.

Step 3: Final Answer:
Thus, the correct matching is A - IV, B - III, C - II, D - I, corresponding to option (C).