Match List I with List II and select the correct answer using the code given below the lists: List I (Disease) A. AIDS B. Plague C. Typhoid D. Darren Island List II (Diagnosis) 1. Widal test 2. Wayson stain test 3. ELISA test 4. Mantoux test Code : ABC

The correct matching of diseases to their diagnostic tests is as follows: AIDS is primarily screened using the ELISA (Enzyme-Linked Immunosorbent Assay) test, which detects HIV antibodies or antigens. Plague, specifically bubonic plague caused by Yersinia pestis, is diagnosed using the Wayson stain test, which reveals a characteristic 'safety pin' appearance under a microscope [1]. Typhoid fever, caused by Salmonella typhi, is traditionally diagnosed via the Widal test, which detects agglutinating antibodies against the H and O antigens of the bacteria. The Mantoux test is a skin test used to screen for Tuberculosis (TB) by measuring the immune response to tuberculin. Although 'Darren Island' appears to be a typographical error in the question (likely intended for a disease or location context), the Mantoux test is the only remaining diagnostic tool, typically associated with TB screening.

Sources

1. [1] https://www.aids.gov.hk/pdf/g190htm/03.htm